21660528

素因数分解:

$2^4\times 3^1\times {\mathrm{311}}^1\times {\mathrm{1451}}^1$

素因数の和:1773

約数の個数: 40

約数和(自身を含む): 56174976

約数和(自身を除く): 34514448

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 311, 622, 933, 1244, 1451, 1866, 2488, 2902, 3732, 4353, 4976, 5804, 7464, 8706, 11608, 14928, 17412, 23216, 34824, 69648, 451261, 902522, 1353783, 1805044, 2707566, 3610088, 5415132, 7220176, 10830264, 21660528]

約数ペア:

[(1, 21660528), (2, 10830264), (3, 7220176), (4, 5415132), (6, 3610088), (8, 2707566), (12, 1805044), (16, 1353783), (24, 902522), (48, 451261), (311, 69648), (622, 34824), (933, 23216), (1244, 17412), (1451, 14928), (1866, 11608), (2488, 8706), (2902, 7464), (3732, 5804), (4353, 4976)]