66781491

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{661}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 108292608

約数和(自身を除く): 41511117

約数列:

[1, 3, 7, 17, 21, 51, 119, 283, 357, 661, 849, 1981, 1983, 4627, 4811, 5943, 11237, 13881, 14433, 33677, 33711, 78659, 101031, 187063, 235977, 561189, 1309441, 3180071, 3928323, 9540213, 22260497, 66781491]

約数ペア:

[(1, 66781491), (3, 22260497), (7, 9540213), (17, 3928323), (21, 3180071), (51, 1309441), (119, 561189), (283, 235977), (357, 187063), (661, 101031), (849, 78659), (1981, 33711), (1983, 33677), (4627, 14433), (4811, 13881), (5943, 11237)]