21725668

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{727}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 39463424

約数和(自身を除く): 17737756

約数列:

[1, 2, 4, 31, 62, 124, 241, 482, 727, 964, 1454, 2908, 7471, 14942, 22537, 29884, 45074, 90148, 175207, 350414, 700828, 5431417, 10862834, 21725668]

約数ペア:

[(1, 21725668), (2, 10862834), (4, 5431417), (31, 700828), (62, 350414), (124, 175207), (241, 90148), (482, 45074), (727, 29884), (964, 22537), (1454, 14942), (2908, 7471)]