20121263617

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{5531}}^1\times {\mathrm{5711}}^1$

素因数の和:11269

約数の個数: 24

約数和(自身を含む): 25215829632

約数和(自身を除く): 5094566015

約数列:

[1, 7, 13, 49, 91, 637, 5531, 5711, 38717, 39977, 71903, 74243, 271019, 279839, 503321, 519701, 3523247, 3637907, 31587541, 221112787, 410638033, 1547789509, 2874466231, 20121263617]

約数ペア:

[(1, 20121263617), (7, 2874466231), (13, 1547789509), (49, 410638033), (91, 221112787), (637, 31587541), (5531, 3637907), (5711, 3523247), (38717, 519701), (39977, 503321), (71903, 279839), (74243, 271019)]