21986010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1279}}^1$

素因数の和:1483

約数の個数: 48

約数和(自身を含む): 57507840

約数和(自身を除く): 35521830

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 191, 382, 573, 955, 1146, 1279, 1719, 1910, 2558, 2865, 3438, 3837, 5730, 6395, 7674, 8595, 11511, 12790, 17190, 19185, 23022, 38370, 57555, 115110, 244289, 488578, 732867, 1221445, 1465734, 2198601, 2442890, 3664335, 4397202, 7328670, 10993005, 21986010]

約数ペア:

[(1, 21986010), (2, 10993005), (3, 7328670), (5, 4397202), (6, 3664335), (9, 2442890), (10, 2198601), (15, 1465734), (18, 1221445), (30, 732867), (45, 488578), (90, 244289), (191, 115110), (382, 57555), (573, 38370), (955, 23022), (1146, 19185), (1279, 17190), (1719, 12790), (1910, 11511), (2558, 8595), (2865, 7674), (3438, 6395), (3837, 5730)]