31021641

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 54312960

約数和(自身を除く): 23291319

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 79, 161, 207, 237, 271, 483, 553, 711, 813, 1449, 1659, 1817, 1897, 2439, 4977, 5451, 5691, 6233, 12719, 16353, 17073, 18699, 21409, 38157, 43631, 56097, 64227, 114471, 130893, 149863, 192681, 392679, 449589, 492407, 1348767, 1477221, 3446849, 4431663, 10340547, 31021641]

約数ペア:

[(1, 31021641), (3, 10340547), (7, 4431663), (9, 3446849), (21, 1477221), (23, 1348767), (63, 492407), (69, 449589), (79, 392679), (161, 192681), (207, 149863), (237, 130893), (271, 114471), (483, 64227), (553, 56097), (711, 43631), (813, 38157), (1449, 21409), (1659, 18699), (1817, 17073), (1897, 16353), (2439, 12719), (4977, 6233), (5451, 5691)]