21163390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{293}}^1$

素因数の和:564

約数の個数: 32

約数和(自身を含む): 39626496

約数和(自身を除く): 18463106

約数列:

[1, 2, 5, 10, 31, 62, 155, 233, 293, 310, 466, 586, 1165, 1465, 2330, 2930, 7223, 9083, 14446, 18166, 36115, 45415, 68269, 72230, 90830, 136538, 341345, 682690, 2116339, 4232678, 10581695, 21163390]

約数ペア:

[(1, 21163390), (2, 10581695), (5, 4232678), (10, 2116339), (31, 682690), (62, 341345), (155, 136538), (233, 90830), (293, 72230), (310, 68269), (466, 45415), (586, 36115), (1165, 18166), (1465, 14446), (2330, 9083), (2930, 7223)]