20124645

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 33796224

約数和(自身を除く): 13671579

約数列:

[1, 3, 5, 15, 41, 43, 123, 129, 205, 215, 615, 645, 761, 1763, 2283, 3805, 5289, 8815, 11415, 26445, 31201, 32723, 93603, 98169, 156005, 163615, 468015, 490845, 1341643, 4024929, 6708215, 20124645]

約数ペア:

[(1, 20124645), (3, 6708215), (5, 4024929), (15, 1341643), (41, 490845), (43, 468015), (123, 163615), (129, 156005), (205, 98169), (215, 93603), (615, 32723), (645, 31201), (761, 26445), (1763, 11415), (2283, 8815), (3805, 5289)]