21059410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{409}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 40147200

約数和(自身を除く): 19087790

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 271, 409, 542, 818, 1355, 2045, 2710, 4090, 5149, 7771, 10298, 15542, 25745, 38855, 51490, 77710, 110839, 221678, 554195, 1108390, 2105941, 4211882, 10529705, 21059410]

約数ペア:

[(1, 21059410), (2, 10529705), (5, 4211882), (10, 2105941), (19, 1108390), (38, 554195), (95, 221678), (190, 110839), (271, 77710), (409, 51490), (542, 38855), (818, 25745), (1355, 15542), (2045, 10298), (2710, 7771), (4090, 5149)]