21130312

素因数分解:

$2^3\times 7^1\times {\mathrm{377327}}^1$

素因数の和:377340

約数の個数: 16

約数和(自身を含む): 45279360

約数和(自身を除く): 24149048

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 377327, 754654, 1509308, 2641289, 3018616, 5282578, 10565156, 21130312]

約数ペア:

[(1, 21130312), (2, 10565156), (4, 5282578), (7, 3018616), (8, 2641289), (14, 1509308), (28, 754654), (56, 377327)]