81861747

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{953}}^1$

素因数の和:1123

約数の個数: 32

約数和(自身を含む): 126385920

約数和(自身を除く): 44524173

約数列:

[1, 3, 11, 19, 33, 57, 137, 209, 411, 627, 953, 1507, 2603, 2859, 4521, 7809, 10483, 18107, 28633, 31449, 54321, 85899, 130561, 199177, 391683, 597531, 1436171, 2480659, 4308513, 7441977, 27287249, 81861747]

約数ペア:

[(1, 81861747), (3, 27287249), (11, 7441977), (19, 4308513), (33, 2480659), (57, 1436171), (137, 597531), (209, 391683), (411, 199177), (627, 130561), (953, 85899), (1507, 54321), (2603, 31449), (2859, 28633), (4521, 18107), (7809, 10483)]