21615950

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{6089}}^1$

素因数の和:6172

約数の個数: 24

約数和(自身を含む): 40778640

約数和(自身を除く): 19162690

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 6089, 12178, 30445, 60890, 152225, 304450, 432319, 864638, 2161595, 4323190, 10807975, 21615950]

約数ペア:

[(1, 21615950), (2, 10807975), (5, 4323190), (10, 2161595), (25, 864638), (50, 432319), (71, 304450), (142, 152225), (355, 60890), (710, 30445), (1775, 12178), (3550, 6089)]