21357068

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{547}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 38482752

約数和(自身を除く): 17125684

約数列:

[1, 2, 4, 43, 86, 172, 227, 454, 547, 908, 1094, 2188, 9761, 19522, 23521, 39044, 47042, 94084, 124169, 248338, 496676, 5339267, 10678534, 21357068]

約数ペア:

[(1, 21357068), (2, 10678534), (4, 5339267), (43, 496676), (86, 248338), (172, 124169), (227, 94084), (454, 47042), (547, 39044), (908, 23521), (1094, 19522), (2188, 9761)]