201275991

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 342650880

約数和(自身を除く): 141374889

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 191, 301, 387, 389, 573, 903, 1167, 1337, 1719, 2709, 2723, 3501, 4011, 8169, 8213, 12033, 16727, 24507, 24639, 50181, 57491, 73917, 74299, 117089, 150543, 172473, 222897, 351267, 517419, 520093, 668691, 1053801, 1560279, 3194857, 4680837, 9584571, 22363999, 28753713, 67091997, 201275991]

約数ペア:

[(1, 201275991), (3, 67091997), (7, 28753713), (9, 22363999), (21, 9584571), (43, 4680837), (63, 3194857), (129, 1560279), (191, 1053801), (301, 668691), (387, 520093), (389, 517419), (573, 351267), (903, 222897), (1167, 172473), (1337, 150543), (1719, 117089), (2709, 74299), (2723, 73917), (3501, 57491), (4011, 50181), (8169, 24639), (8213, 24507), (12033, 16727)]