20420169

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{811}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 34298880

約数和(自身を除く): 13878711

約数列:

[1, 3, 7, 11, 21, 33, 77, 109, 231, 327, 763, 811, 1199, 2289, 2433, 3597, 5677, 8393, 8921, 17031, 25179, 26763, 62447, 88399, 187341, 265197, 618793, 972389, 1856379, 2917167, 6806723, 20420169]

約数ペア:

[(1, 20420169), (3, 6806723), (7, 2917167), (11, 1856379), (21, 972389), (33, 618793), (77, 265197), (109, 187341), (231, 88399), (327, 62447), (763, 26763), (811, 25179), (1199, 17031), (2289, 8921), (2433, 8393), (3597, 5677)]