21507858

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{25423}}^1$

素因数の和:25478

約数の個数: 24

約数和(自身を含む): 47593728

約数和(自身を除く): 26085870

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 141, 282, 423, 846, 25423, 50846, 76269, 152538, 228807, 457614, 1194881, 2389762, 3584643, 7169286, 10753929, 21507858]

約数ペア:

[(1, 21507858), (2, 10753929), (3, 7169286), (6, 3584643), (9, 2389762), (18, 1194881), (47, 457614), (94, 228807), (141, 152538), (282, 76269), (423, 50846), (846, 25423)]