20903312

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{3947}}^1$

素因数の和:4286

約数の個数: 20

約数和(自身を含む): 40632816

約数和(自身を除く): 19729504

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 3947, 5296, 7894, 15788, 31576, 63152, 1306457, 2612914, 5225828, 10451656, 20903312]

約数ペア:

[(1, 20903312), (2, 10451656), (4, 5225828), (8, 2612914), (16, 1306457), (331, 63152), (662, 31576), (1324, 15788), (2648, 7894), (3947, 5296)]