19929525

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:84

約数の個数: 144

約数和(自身を含む): 45800640

約数和(自身を除く): 25871115

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 25, 29, 33, 35, 49, 51, 55, 75, 77, 85, 87, 105, 119, 145, 147, 165, 175, 187, 203, 231, 245, 255, 275, 319, 357, 385, 425, 435, 493, 525, 539, 561, 595, 609, 725, 735, 825, 833, 935, 957, 1015, 1155, 1225, 1275, 1309, 1421, 1479, 1595, 1617, 1785, 1925, 2175, 2233, 2465, 2499, 2695, 2805, 2975, 3045, 3451, 3675, 3927, 4165, 4263, 4675, 4785, 5075, 5423, 5775, 6545, 6699, 7105, 7395, 7975, 8085, 8925, 9163, 10353, 11165, 12325, 12495, 13475, 14025, 15225, 15631, 16269, 17255, 19635, 20825, 21315, 23925, 24157, 27115, 27489, 32725, 33495, 35525, 36975, 37961, 40425, 45815, 46893, 51765, 55825, 62475, 72471, 78155, 81345, 86275, 98175, 106575, 113883, 120785, 135575, 137445, 167475, 189805, 229075, 234465, 258825, 265727, 362355, 390775, 406725, 569415, 603925, 687225, 797181, 949025, 1172325, 1328635, 1811775, 2847075, 3985905, 6643175, 19929525]

約数ペア:

[(1, 19929525), (3, 6643175), (5, 3985905), (7, 2847075), (11, 1811775), (15, 1328635), (17, 1172325), (21, 949025), (25, 797181), (29, 687225), (33, 603925), (35, 569415), (49, 406725), (51, 390775), (55, 362355), (75, 265727), (77, 258825), (85, 234465), (87, 229075), (105, 189805), (119, 167475), (145, 137445), (147, 135575), (165, 120785), (175, 113883), (187, 106575), (203, 98175), (231, 86275), (245, 81345), (255, 78155), (275, 72471), (319, 62475), (357, 55825), (385, 51765), (425, 46893), (435, 45815), (493, 40425), (525, 37961), (539, 36975), (561, 35525), (595, 33495), (609, 32725), (725, 27489), (735, 27115), (825, 24157), (833, 23925), (935, 21315), (957, 20825), (1015, 19635), (1155, 17255), (1225, 16269), (1275, 15631), (1309, 15225), (1421, 14025), (1479, 13475), (1595, 12495), (1617, 12325), (1785, 11165), (1925, 10353), (2175, 9163), (2233, 8925), (2465, 8085), (2499, 7975), (2695, 7395), (2805, 7105), (2975, 6699), (3045, 6545), (3451, 5775), (3675, 5423), (3927, 5075), (4165, 4785), (4263, 4675)]