81142047

素因数分解:

$3^3\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1151}}^1$

素因数の和:1540

約数の個数: 32

約数和(自身を含む): 137871360

約数和(自身を除く): 56729313

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 373, 1119, 1151, 2611, 3357, 3453, 7833, 8057, 10071, 10359, 23499, 24171, 31077, 70497, 72513, 217539, 429323, 1287969, 3005261, 3863907, 9015783, 11591721, 27047349, 81142047]

約数ペア:

[(1, 81142047), (3, 27047349), (7, 11591721), (9, 9015783), (21, 3863907), (27, 3005261), (63, 1287969), (189, 429323), (373, 217539), (1119, 72513), (1151, 70497), (2611, 31077), (3357, 24171), (3453, 23499), (7833, 10359), (8057, 10071)]