20185209

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3847}}^1$

素因数の和:3917

約数の個数: 24

約数和(自身を含む): 32415552

約数和(自身を除く): 12230343

約数列:

[1, 3, 9, 11, 33, 53, 99, 159, 477, 583, 1749, 3847, 5247, 11541, 34623, 42317, 126951, 203891, 380853, 611673, 1835019, 2242801, 6728403, 20185209]

約数ペア:

[(1, 20185209), (3, 6728403), (9, 2242801), (11, 1835019), (33, 611673), (53, 380853), (99, 203891), (159, 126951), (477, 42317), (583, 34623), (1749, 11541), (3847, 5247)]