21509708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{1129}}^1$

素因数の和:1577

約数の個数: 24

約数和(自身を含む): 41195280

約数和(自身を除く): 19685572

約数列:

[1, 2, 4, 11, 22, 44, 433, 866, 1129, 1732, 2258, 4516, 4763, 9526, 12419, 19052, 24838, 49676, 488857, 977714, 1955428, 5377427, 10754854, 21509708]

約数ペア:

[(1, 21509708), (2, 10754854), (4, 5377427), (11, 1955428), (22, 977714), (44, 488857), (433, 49676), (866, 24838), (1129, 19052), (1732, 12419), (2258, 9526), (4516, 4763)]