20271664

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3851}}^1$

素因数の和:3913

約数の個数: 40

約数和(自身を含む): 45854208

約数和(自身を除く): 25582544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 3851, 5264, 7702, 15404, 26957, 30808, 53914, 61616, 107828, 180997, 215656, 361994, 431312, 723988, 1266979, 1447976, 2533958, 2895952, 5067916, 10135832, 20271664]

約数ペア:

[(1, 20271664), (2, 10135832), (4, 5067916), (7, 2895952), (8, 2533958), (14, 1447976), (16, 1266979), (28, 723988), (47, 431312), (56, 361994), (94, 215656), (112, 180997), (188, 107828), (329, 61616), (376, 53914), (658, 30808), (752, 26957), (1316, 15404), (2632, 7702), (3851, 5264)]