21221350

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{11471}}^1$

素因数の和:11520

約数の個数: 24

約数和(自身を含む): 40542048

約数和(自身を除く): 19320698

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1850, 11471, 22942, 57355, 114710, 286775, 424427, 573550, 848854, 2122135, 4244270, 10610675, 21221350]

約数ペア:

[(1, 21221350), (2, 10610675), (5, 4244270), (10, 2122135), (25, 848854), (37, 573550), (50, 424427), (74, 286775), (185, 114710), (370, 57355), (925, 22942), (1850, 11471)]