831691791

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1\times {\mathrm{557}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 1393464384

約数和(自身を除く): 561772593

約数列:

[1, 3, 7, 9, 21, 63, 137, 173, 411, 519, 557, 959, 1211, 1233, 1557, 1671, 2877, 3633, 3899, 5013, 8631, 10899, 11697, 23701, 35091, 71103, 76309, 96361, 165907, 213309, 228927, 289083, 497721, 534163, 674527, 686781, 867249, 1493163, 1602489, 2023581, 4807467, 6070743, 13201457, 39604371, 92410199, 118813113, 277230597, 831691791]

約数ペア:

[(1, 831691791), (3, 277230597), (7, 118813113), (9, 92410199), (21, 39604371), (63, 13201457), (137, 6070743), (173, 4807467), (411, 2023581), (519, 1602489), (557, 1493163), (959, 867249), (1211, 686781), (1233, 674527), (1557, 534163), (1671, 497721), (2877, 289083), (3633, 228927), (3899, 213309), (5013, 165907), (8631, 96361), (10899, 76309), (11697, 71103), (23701, 35091)]