20577921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75377}}^1$

素因数の和:75400

約数の個数: 16

約数和(自身を含む): 33769344

約数和(自身を除く): 13191423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75377, 226131, 527639, 979901, 1582917, 2939703, 6859307, 20577921]

約数ペア:

[(1, 20577921), (3, 6859307), (7, 2939703), (13, 1582917), (21, 979901), (39, 527639), (91, 226131), (273, 75377)]