19558796

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1129}}^1$

素因数の和:1265

約数の個数: 24

約数和(自身を含む): 35310240

約数和(自身を除く): 15751444

約数列:

[1, 2, 4, 61, 71, 122, 142, 244, 284, 1129, 2258, 4331, 4516, 8662, 17324, 68869, 80159, 137738, 160318, 275476, 320636, 4889699, 9779398, 19558796]

約数ペア:

[(1, 19558796), (2, 9779398), (4, 4889699), (61, 320636), (71, 275476), (122, 160318), (142, 137738), (244, 80159), (284, 68869), (1129, 17324), (2258, 8662), (4331, 4516)]