31861179

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 56609280

約数和(自身を除く): 24748101

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 71, 119, 153, 213, 357, 419, 497, 639, 1071, 1207, 1257, 1491, 2933, 3621, 3771, 4473, 7123, 8449, 8799, 10863, 21369, 25347, 26397, 29749, 49861, 64107, 76041, 89247, 149583, 208243, 267741, 448749, 505733, 624729, 1517199, 1874187, 3540131, 4551597, 10620393, 31861179]

約数ペア:

[(1, 31861179), (3, 10620393), (7, 4551597), (9, 3540131), (17, 1874187), (21, 1517199), (51, 624729), (63, 505733), (71, 448749), (119, 267741), (153, 208243), (213, 149583), (357, 89247), (419, 76041), (497, 64107), (639, 49861), (1071, 29749), (1207, 26397), (1257, 25347), (1491, 21369), (2933, 10863), (3621, 8799), (3771, 8449), (4473, 7123)]