20402502

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 42112224

約数和(自身を除く): 21709722

約数列:

[1, 2, 3, 6, 41, 82, 123, 197, 246, 394, 421, 591, 842, 1182, 1263, 2526, 8077, 16154, 17261, 24231, 34522, 48462, 51783, 82937, 103566, 165874, 248811, 497622, 3400417, 6800834, 10201251, 20402502]

約数ペア:

[(1, 20402502), (2, 10201251), (3, 6800834), (6, 3400417), (41, 497622), (82, 248811), (123, 165874), (197, 103566), (246, 82937), (394, 51783), (421, 48462), (591, 34522), (842, 24231), (1182, 17261), (1263, 16154), (2526, 8077)]