61947081

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20921}}^1$

素因数の和:20981

約数の個数: 24

約数和(自身を含む): 104442624

約数和(自身を除く): 42495543

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 20921, 62763, 146447, 188289, 439341, 983287, 1318023, 2949861, 6883009, 8849583, 20649027, 61947081]

約数ペア:

[(1, 61947081), (3, 20649027), (7, 8849583), (9, 6883009), (21, 2949861), (47, 1318023), (63, 983287), (141, 439341), (329, 188289), (423, 146447), (987, 62763), (2961, 20921)]