18669885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1429}}^1$

素因数の和:1517

約数の個数: 32

約数和(自身を含む): 32672640

約数和(自身を除く): 14002755

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 1429, 2613, 4287, 4355, 7145, 13065, 18577, 21435, 55731, 92885, 95743, 278655, 287229, 478715, 1244659, 1436145, 3733977, 6223295, 18669885]

約数ペア:

[(1, 18669885), (3, 6223295), (5, 3733977), (13, 1436145), (15, 1244659), (39, 478715), (65, 287229), (67, 278655), (195, 95743), (201, 92885), (335, 55731), (871, 21435), (1005, 18577), (1429, 13065), (2613, 7145), (4287, 4355)]