19745506

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{587}}^1$

素因数の和:750

約数の個数: 24

約数和(自身を含む): 32845680

約数和(自身を除く): 13100174

約数列:

[1, 2, 11, 22, 121, 139, 242, 278, 587, 1174, 1529, 3058, 6457, 12914, 16819, 33638, 71027, 81593, 142054, 163186, 897523, 1795046, 9872753, 19745506]

約数ペア:

[(1, 19745506), (2, 9872753), (11, 1795046), (22, 897523), (121, 163186), (139, 142054), (242, 81593), (278, 71027), (587, 33638), (1174, 16819), (1529, 12914), (3058, 6457)]