21555001

素因数分解:

${\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:408

約数の個数: 16

約数和(自身を含む): 23889600

約数和(自身を除く): 2334599

約数列:

[1, 13, 59, 157, 179, 767, 2041, 2327, 9263, 10561, 28103, 120419, 137293, 365339, 1658077, 21555001]

約数ペア:

[(1, 21555001), (13, 1658077), (59, 365339), (157, 137293), (179, 120419), (767, 28103), (2041, 10561), (2327, 9263)]