19879613

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3911}}^1$

素因数の和:3964

約数の個数: 16

約数和(自身を含む): 23659776

約数和(自身を除く): 3780163

約数列:

[1, 13, 17, 23, 221, 299, 391, 3911, 5083, 50843, 66487, 89953, 864331, 1169389, 1529201, 19879613]

約数ペア:

[(1, 19879613), (13, 1529201), (17, 1169389), (23, 864331), (221, 89953), (299, 66487), (391, 50843), (3911, 5083)]