641007921

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{863}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 917360640

約数和(自身を除く): 276352719

約数列:

[1, 3, 19, 57, 83, 157, 249, 471, 863, 1577, 2589, 2983, 4731, 8949, 13031, 16397, 39093, 49191, 71629, 135491, 214887, 247589, 406473, 742767, 1360951, 2574329, 4082853, 7722987, 11245753, 33737259, 213669307, 641007921]

約数ペア:

[(1, 641007921), (3, 213669307), (19, 33737259), (57, 11245753), (83, 7722987), (157, 4082853), (249, 2574329), (471, 1360951), (863, 742767), (1577, 406473), (2589, 247589), (2983, 214887), (4731, 135491), (8949, 71629), (13031, 49191), (16397, 39093)]