21771304425

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1\times {\mathrm{479}}^1$

素因数の和:928

約数の個数: 144

約数和(自身を含む): 43222233600

約数和(自身を除く): 21450929175

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 117, 123, 195, 205, 225, 325, 369, 379, 479, 533, 585, 615, 975, 1025, 1137, 1437, 1599, 1845, 1895, 2395, 2665, 2925, 3075, 3411, 4311, 4797, 4927, 5685, 6227, 7185, 7995, 9225, 9475, 11975, 13325, 14781, 15539, 17055, 18681, 19639, 21555, 23985, 24635, 28425, 31135, 35925, 39975, 44343, 46617, 56043, 58917, 73905, 77695, 85275, 93405, 98195, 107775, 119925, 123175, 139851, 155675, 176751, 181541, 202007, 221715, 233085, 255307, 280215, 294585, 369525, 388475, 467025, 490975, 544623, 606021, 699255, 765921, 883755, 907705, 1010035, 1108575, 1165425, 1276535, 1401075, 1472925, 1633869, 1818063, 2297763, 2360033, 2723115, 3030105, 3496275, 3829605, 4418775, 4538525, 5050175, 6382675, 7080099, 7443181, 8169345, 9090315, 11488815, 11800165, 13615575, 15150525, 19148025, 21240297, 22329543, 35400495, 37215905, 40846725, 45451575, 57444075, 59000825, 66988629, 96761353, 106201485, 111647715, 177002475, 186079525, 290284059, 334943145, 483806765, 531007425, 558238575, 870852177, 1451420295, 1674715725, 2419033825, 4354260885, 7257101475, 21771304425]

約数ペア:

[(1, 21771304425), (3, 7257101475), (5, 4354260885), (9, 2419033825), (13, 1674715725), (15, 1451420295), (25, 870852177), (39, 558238575), (41, 531007425), (45, 483806765), (65, 334943145), (75, 290284059), (117, 186079525), (123, 177002475), (195, 111647715), (205, 106201485), (225, 96761353), (325, 66988629), (369, 59000825), (379, 57444075), (479, 45451575), (533, 40846725), (585, 37215905), (615, 35400495), (975, 22329543), (1025, 21240297), (1137, 19148025), (1437, 15150525), (1599, 13615575), (1845, 11800165), (1895, 11488815), (2395, 9090315), (2665, 8169345), (2925, 7443181), (3075, 7080099), (3411, 6382675), (4311, 5050175), (4797, 4538525), (4927, 4418775), (5685, 3829605), (6227, 3496275), (7185, 3030105), (7995, 2723115), (9225, 2360033), (9475, 2297763), (11975, 1818063), (13325, 1633869), (14781, 1472925), (15539, 1401075), (17055, 1276535), (18681, 1165425), (19639, 1108575), (21555, 1010035), (23985, 907705), (24635, 883755), (28425, 765921), (31135, 699255), (35925, 606021), (39975, 544623), (44343, 490975), (46617, 467025), (56043, 388475), (58917, 369525), (73905, 294585), (77695, 280215), (85275, 255307), (93405, 233085), (98195, 221715), (107775, 202007), (119925, 181541), (123175, 176751), (139851, 155675)]