20858152

素因数分解:

$2^3\times 7^1\times {\mathrm{59}}^2\times {\mathrm{107}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 45891360

約数和(自身を除く): 25033208

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 59, 107, 118, 214, 236, 413, 428, 472, 749, 826, 856, 1498, 1652, 2996, 3304, 3481, 5992, 6313, 6962, 12626, 13924, 24367, 25252, 27848, 44191, 48734, 50504, 88382, 97468, 176764, 194936, 353528, 372467, 744934, 1489868, 2607269, 2979736, 5214538, 10429076, 20858152]

約数ペア:

[(1, 20858152), (2, 10429076), (4, 5214538), (7, 2979736), (8, 2607269), (14, 1489868), (28, 744934), (56, 372467), (59, 353528), (107, 194936), (118, 176764), (214, 97468), (236, 88382), (413, 50504), (428, 48734), (472, 44191), (749, 27848), (826, 25252), (856, 24367), (1498, 13924), (1652, 12626), (2996, 6962), (3304, 6313), (3481, 5992)]