18897243

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{601}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 25890816

約数和(自身を除く): 6993573

約数列:

[1, 3, 47, 141, 223, 601, 669, 1803, 10481, 28247, 31443, 84741, 134023, 402069, 6299081, 18897243]

約数ペア:

[(1, 18897243), (3, 6299081), (47, 402069), (141, 134023), (223, 84741), (601, 31443), (669, 28247), (1803, 10481)]