920795421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{78439}}^1$

素因数の和:78505

約数の個数: 32

約数和(自身を含む): 1546209280

約数和(自身を除く): 625413859

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 11739, 78439, 235317, 549073, 1019707, 1647219, 3059121, 3372877, 7137949, 10118631, 21413847, 23610139, 43847401, 70830417, 131542203, 306931807, 920795421]

約数ペア:

[(1, 920795421), (3, 306931807), (7, 131542203), (13, 70830417), (21, 43847401), (39, 23610139), (43, 21413847), (91, 10118631), (129, 7137949), (273, 3372877), (301, 3059121), (559, 1647219), (903, 1019707), (1677, 549073), (3913, 235317), (11739, 78439)]