20814367

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 25900800

約数和(自身を除く): 5086433

約数列:

[1, 7, 19, 49, 79, 133, 283, 553, 931, 1501, 1981, 3871, 5377, 10507, 13867, 22357, 37639, 73549, 156499, 263473, 424783, 1095493, 2973481, 20814367]

約数ペア:

[(1, 20814367), (7, 2973481), (19, 1095493), (49, 424783), (79, 263473), (133, 156499), (283, 73549), (553, 37639), (931, 22357), (1501, 13867), (1981, 10507), (3871, 5377)]