20251581

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 32406528

約数和(自身を除く): 12154947

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 287, 301, 547, 861, 903, 1641, 1763, 3829, 5289, 11487, 12341, 22427, 23521, 37023, 67281, 70563, 156989, 164647, 470967, 493941, 964361, 2893083, 6750527, 20251581]

約数ペア:

[(1, 20251581), (3, 6750527), (7, 2893083), (21, 964361), (41, 493941), (43, 470967), (123, 164647), (129, 156989), (287, 70563), (301, 67281), (547, 37023), (861, 23521), (903, 22427), (1641, 12341), (1763, 11487), (3829, 5289)]