19751263

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 24648624

約数和(自身を除く): 4897361

約数列:

[1, 7, 17, 49, 119, 131, 181, 833, 917, 1267, 2227, 3077, 6419, 8869, 15589, 21539, 23711, 109123, 150773, 165977, 403087, 1161839, 2821609, 19751263]

約数ペア:

[(1, 19751263), (7, 2821609), (17, 1161839), (49, 403087), (119, 165977), (131, 150773), (181, 109123), (833, 23711), (917, 21539), (1267, 15589), (2227, 8869), (3077, 6419)]