18858091

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{577}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 23721120

約数和(自身を除く): 4863029

約数列:

[1, 7, 23, 29, 49, 161, 203, 577, 667, 1127, 1421, 4039, 4669, 13271, 16733, 28273, 32683, 92897, 117131, 384859, 650279, 819917, 2694013, 18858091]

約数ペア:

[(1, 18858091), (7, 2694013), (23, 819917), (29, 650279), (49, 384859), (161, 117131), (203, 92897), (577, 32683), (667, 28273), (1127, 16733), (1421, 13271), (4039, 4669)]