21111810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4723}}^1$

素因数の和:4882

約数の個数: 32

約数和(自身を含む): 51019200

約数和(自身を除く): 29907390

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 149, 298, 447, 745, 894, 1490, 2235, 4470, 4723, 9446, 14169, 23615, 28338, 47230, 70845, 141690, 703727, 1407454, 2111181, 3518635, 4222362, 7037270, 10555905, 21111810]

約数ペア:

[(1, 21111810), (2, 10555905), (3, 7037270), (5, 4222362), (6, 3518635), (10, 2111181), (15, 1407454), (30, 703727), (149, 141690), (298, 70845), (447, 47230), (745, 28338), (894, 23615), (1490, 14169), (2235, 9446), (4470, 4723)]