17942845

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 22163760

約数和(自身を除く): 4220915

約数列:

[1, 5, 61, 89, 305, 445, 661, 3305, 5429, 27145, 40321, 58829, 201605, 294145, 3588569, 17942845]

約数ペア:

[(1, 17942845), (5, 3588569), (61, 294145), (89, 201605), (305, 58829), (445, 40321), (661, 27145), (3305, 5429)]