72321291

素因数分解:

$3^2\times 7^1\times {\mathrm{563}}^1\times {\mathrm{2039}}^1$

素因数の和:2615

約数の個数: 24

約数和(自身を含む): 119658240

約数和(自身を除く): 47336949

約数列:

[1, 3, 7, 9, 21, 63, 563, 1689, 2039, 3941, 5067, 6117, 11823, 14273, 18351, 35469, 42819, 128457, 1147957, 3443871, 8035699, 10331613, 24107097, 72321291]

約数ペア:

[(1, 72321291), (3, 24107097), (7, 10331613), (9, 8035699), (21, 3443871), (63, 1147957), (563, 128457), (1689, 42819), (2039, 35469), (3941, 18351), (5067, 14273), (6117, 11823)]