81615807

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 146065920

約数和(自身を除く): 64450113

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 227, 273, 439, 681, 819, 1317, 1589, 2043, 2951, 3073, 3951, 4767, 5707, 8853, 9219, 14301, 17121, 20657, 26559, 27657, 39949, 51363, 61971, 99653, 119847, 185913, 298959, 359541, 697571, 896877, 1295489, 2092713, 3886467, 6278139, 9068423, 11659401, 27205269, 81615807]

約数ペア:

[(1, 81615807), (3, 27205269), (7, 11659401), (9, 9068423), (13, 6278139), (21, 3886467), (39, 2092713), (63, 1295489), (91, 896877), (117, 697571), (227, 359541), (273, 298959), (439, 185913), (681, 119847), (819, 99653), (1317, 61971), (1589, 51363), (2043, 39949), (2951, 27657), (3073, 26559), (3951, 20657), (4767, 17121), (5707, 14301), (8853, 9219)]