219715197

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{691}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 327376896

約数和(自身を除く): 107661699

約数列:

[1, 3, 13, 31, 39, 93, 263, 403, 691, 789, 1209, 2073, 3419, 8153, 8983, 10257, 21421, 24459, 26949, 64263, 105989, 181733, 278473, 317967, 545199, 835419, 2362529, 5633723, 7087587, 16901169, 73238399, 219715197]

約数ペア:

[(1, 219715197), (3, 73238399), (13, 16901169), (31, 7087587), (39, 5633723), (93, 2362529), (263, 835419), (403, 545199), (691, 317967), (789, 278473), (1209, 181733), (2073, 105989), (3419, 64263), (8153, 26949), (8983, 24459), (10257, 21421)]