21858350

素因数分解:

$2^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{3191}}^1$

素因数の和:3340

約数の個数: 24

約数和(自身を含む): 40966128

約数和(自身を除く): 19107778

約数列:

[1, 2, 5, 10, 25, 50, 137, 274, 685, 1370, 3191, 3425, 6382, 6850, 15955, 31910, 79775, 159550, 437167, 874334, 2185835, 4371670, 10929175, 21858350]

約数ペア:

[(1, 21858350), (2, 10929175), (5, 4371670), (10, 2185835), (25, 874334), (50, 437167), (137, 159550), (274, 79775), (685, 31910), (1370, 15955), (3191, 6850), (3425, 6382)]