19565865

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 39132288

約数和(自身を除く): 19566423

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 47, 55, 87, 99, 141, 145, 165, 235, 261, 319, 423, 435, 495, 517, 705, 841, 957, 1305, 1363, 1551, 1595, 2115, 2523, 2585, 2871, 4089, 4205, 4653, 4785, 6815, 7569, 7755, 9251, 12267, 12615, 14355, 14993, 20445, 23265, 27753, 37845, 39527, 44979, 46255, 61335, 74965, 83259, 118581, 134937, 138765, 197635, 224895, 355743, 416295, 434797, 592905, 674685, 1304391, 1778715, 2173985, 3913173, 6521955, 19565865]

約数ペア:

[(1, 19565865), (3, 6521955), (5, 3913173), (9, 2173985), (11, 1778715), (15, 1304391), (29, 674685), (33, 592905), (45, 434797), (47, 416295), (55, 355743), (87, 224895), (99, 197635), (141, 138765), (145, 134937), (165, 118581), (235, 83259), (261, 74965), (319, 61335), (423, 46255), (435, 44979), (495, 39527), (517, 37845), (705, 27753), (841, 23265), (957, 20445), (1305, 14993), (1363, 14355), (1551, 12615), (1595, 12267), (2115, 9251), (2523, 7755), (2585, 7569), (2871, 6815), (4089, 4785), (4205, 4653)]