721292013

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{821}}^1\times {\mathrm{2503}}^1$

素因数の和:3346

約数の個数: 32

約数和(自身を含む): 1152641280

約数和(自身を除く): 431349267

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 821, 2463, 2503, 7389, 7509, 10673, 22167, 22527, 32019, 32539, 67581, 96057, 97617, 288171, 292851, 878553, 2054963, 6164889, 18494667, 26714519, 55484001, 80143557, 240430671, 721292013]

約数ペア:

[(1, 721292013), (3, 240430671), (9, 80143557), (13, 55484001), (27, 26714519), (39, 18494667), (117, 6164889), (351, 2054963), (821, 878553), (2463, 292851), (2503, 288171), (7389, 97617), (7509, 96057), (10673, 67581), (22167, 32539), (22527, 32019)]