20617324

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4357}}^1$

素因数の和:4394

約数の個数: 36

約数和(自身を含む): 44660784

約数和(自身を除く): 24043460

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 4357, 4732, 8714, 17428, 30499, 56641, 60998, 113282, 121996, 226564, 396487, 736333, 792974, 1472666, 1585948, 2945332, 5154331, 10308662, 20617324]

約数ペア:

[(1, 20617324), (2, 10308662), (4, 5154331), (7, 2945332), (13, 1585948), (14, 1472666), (26, 792974), (28, 736333), (52, 396487), (91, 226564), (169, 121996), (182, 113282), (338, 60998), (364, 56641), (676, 30499), (1183, 17428), (2366, 8714), (4357, 4732)]