7766421

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 12042240

約数和(自身を除く): 4275819

約数列:

[1, 3, 13, 19, 39, 47, 57, 141, 223, 247, 611, 669, 741, 893, 1833, 2679, 2899, 4237, 8697, 10481, 11609, 12711, 31443, 34827, 55081, 136253, 165243, 199139, 408759, 597417, 2588807, 7766421]

約数ペア:

[(1, 7766421), (3, 2588807), (13, 597417), (19, 408759), (39, 199139), (47, 165243), (57, 136253), (141, 55081), (223, 34827), (247, 31443), (611, 12711), (669, 11609), (741, 10481), (893, 8697), (1833, 4237), (2679, 2899)]