21350931010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2221741}}^1$

素因数の和:2221810

約数の個数: 24

約数和(自身を含む): 39711416508

約数和(自身を除く): 18360485498

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 4805, 9610, 2221741, 4443482, 11108705, 22217410, 68873971, 137747942, 344369855, 688739710, 2135093101, 4270186202, 10675465505, 21350931010]

約数ペア:

[(1, 21350931010), (2, 10675465505), (5, 4270186202), (10, 2135093101), (31, 688739710), (62, 344369855), (155, 137747942), (310, 68873971), (961, 22217410), (1922, 11108705), (4805, 4443482), (9610, 2221741)]