29781759

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10663}}^1$

素因数の和:10699

約数の個数: 24

約数和(自身を含む): 48627840

約数和(自身を除く): 18846081

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 10663, 31989, 74641, 202597, 223923, 522487, 607791, 1418179, 1567461, 4254537, 9927253, 29781759]

約数ペア:

[(1, 29781759), (3, 9927253), (7, 4254537), (19, 1567461), (21, 1418179), (49, 607791), (57, 522487), (133, 223923), (147, 202597), (399, 74641), (931, 31989), (2793, 10663)]