21365010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{857}}^1$

素因数の和:1147

約数の個数: 48

約数和(自身を含む): 55814616

約数和(自身を除く): 34449606

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 277, 554, 831, 857, 1385, 1662, 1714, 2493, 2571, 2770, 4155, 4285, 4986, 5142, 7713, 8310, 8570, 12465, 12855, 15426, 24930, 25710, 38565, 77130, 237389, 474778, 712167, 1186945, 1424334, 2136501, 2373890, 3560835, 4273002, 7121670, 10682505, 21365010]

約数ペア:

[(1, 21365010), (2, 10682505), (3, 7121670), (5, 4273002), (6, 3560835), (9, 2373890), (10, 2136501), (15, 1424334), (18, 1186945), (30, 712167), (45, 474778), (90, 237389), (277, 77130), (554, 38565), (831, 25710), (857, 24930), (1385, 15426), (1662, 12855), (1714, 12465), (2493, 8570), (2571, 8310), (2770, 7713), (4155, 5142), (4285, 4986)]