20505043

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 32

約数和(自身を含む): 25062912

約数和(自身を除く): 4557869

約数列:

[1, 13, 17, 31, 41, 73, 221, 403, 527, 533, 697, 949, 1241, 1271, 2263, 2993, 6851, 9061, 16133, 16523, 21607, 29419, 38471, 38909, 50881, 92783, 280891, 500123, 661453, 1206179, 1577311, 20505043]

約数ペア:

[(1, 20505043), (13, 1577311), (17, 1206179), (31, 661453), (41, 500123), (73, 280891), (221, 92783), (403, 50881), (527, 38909), (533, 38471), (697, 29419), (949, 21607), (1241, 16523), (1271, 16133), (2263, 9061), (2993, 6851)]