21135290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{709}}^1$

素因数の和:998

約数の個数: 32

約数和(自身を含む): 41713920

約数和(自身を除く): 20578630

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 271, 542, 709, 1355, 1418, 2710, 2981, 3545, 5962, 7090, 7799, 14905, 15598, 29810, 38995, 77990, 192139, 384278, 960695, 1921390, 2113529, 4227058, 10567645, 21135290]

約数ペア:

[(1, 21135290), (2, 10567645), (5, 4227058), (10, 2113529), (11, 1921390), (22, 960695), (55, 384278), (110, 192139), (271, 77990), (542, 38995), (709, 29810), (1355, 15598), (1418, 14905), (2710, 7799), (2981, 7090), (3545, 5962)]