20835381

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 33894400

約数和(自身を除く): 13059019

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 661, 1501, 1659, 1983, 4503, 4627, 10507, 12559, 13881, 31521, 37677, 52219, 87913, 156657, 263739, 365533, 992161, 1096599, 2976483, 6945127, 20835381]

約数ペア:

[(1, 20835381), (3, 6945127), (7, 2976483), (19, 1096599), (21, 992161), (57, 365533), (79, 263739), (133, 156657), (237, 87913), (399, 52219), (553, 37677), (661, 31521), (1501, 13881), (1659, 12559), (1983, 10507), (4503, 4627)]