21903690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5749}}^1$

素因数の和:5886

約数の個数: 32

約数和(自身を含む): 52992000

約数和(自身を除く): 31088310

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 127, 254, 381, 635, 762, 1270, 1905, 3810, 5749, 11498, 17247, 28745, 34494, 57490, 86235, 172470, 730123, 1460246, 2190369, 3650615, 4380738, 7301230, 10951845, 21903690]

約数ペア:

[(1, 21903690), (2, 10951845), (3, 7301230), (5, 4380738), (6, 3650615), (10, 2190369), (15, 1460246), (30, 730123), (127, 172470), (254, 86235), (381, 57490), (635, 34494), (762, 28745), (1270, 17247), (1905, 11498), (3810, 5749)]