161829213

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4457}}^1$

素因数の和:4506

約数の個数: 48

約数和(自身を含む): 284598720

約数和(自身を除く): 122769507

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 637, 741, 931, 1729, 1911, 2793, 4457, 5187, 12103, 13371, 31199, 36309, 57941, 84683, 93597, 173823, 218393, 254049, 405587, 592781, 655179, 1100879, 1216761, 1778343, 2839109, 3302637, 4149467, 7706153, 8517327, 12448401, 23118459, 53943071, 161829213]

約数ペア:

[(1, 161829213), (3, 53943071), (7, 23118459), (13, 12448401), (19, 8517327), (21, 7706153), (39, 4149467), (49, 3302637), (57, 2839109), (91, 1778343), (133, 1216761), (147, 1100879), (247, 655179), (273, 592781), (399, 405587), (637, 254049), (741, 218393), (931, 173823), (1729, 93597), (1911, 84683), (2793, 57941), (4457, 36309), (5187, 31199), (12103, 13371)]