17666945

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 22793400

約数和(自身を除く): 5126455

約数列:

[1, 5, 29, 37, 89, 145, 185, 445, 1073, 1369, 2581, 3293, 5365, 6845, 12905, 16465, 39701, 95497, 121841, 198505, 477485, 609205, 3533389, 17666945]

約数ペア:

[(1, 17666945), (5, 3533389), (29, 609205), (37, 477485), (89, 198505), (145, 121841), (185, 95497), (445, 39701), (1073, 16465), (1369, 12905), (2581, 6845), (3293, 5365)]