201721908

素因数分解:

$2^2\times 3^1\times {\mathrm{211}}^1\times {\mathrm{79669}}^1$

素因数の和:79887

約数の個数: 24

約数和(自身を含む): 472921120

約数和(自身を除く): 271199212

約数列:

[1, 2, 3, 4, 6, 12, 211, 422, 633, 844, 1266, 2532, 79669, 159338, 239007, 318676, 478014, 956028, 16810159, 33620318, 50430477, 67240636, 100860954, 201721908]

約数ペア:

[(1, 201721908), (2, 100860954), (3, 67240636), (4, 50430477), (6, 33620318), (12, 16810159), (211, 956028), (422, 478014), (633, 318676), (844, 239007), (1266, 159338), (2532, 79669)]