20993330

素因数分解:

$2^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3769}}^1$

素因数の和:4333

約数の個数: 16

約数和(自身を含む): 37865880

約数和(自身を除く): 16872550

約数列:

[1, 2, 5, 10, 557, 1114, 2785, 3769, 5570, 7538, 18845, 37690, 2099333, 4198666, 10496665, 20993330]

約数ペア:

[(1, 20993330), (2, 10496665), (5, 4198666), (10, 2099333), (557, 37690), (1114, 18845), (2785, 7538), (3769, 5570)]