20217901

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1039}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 23212800

約数和(自身を除く): 2994899

約数列:

[1, 11, 29, 61, 319, 671, 1039, 1769, 11429, 19459, 30131, 63379, 331441, 697169, 1837991, 20217901]

約数ペア:

[(1, 20217901), (11, 1837991), (29, 697169), (61, 331441), (319, 63379), (671, 30131), (1039, 19459), (1769, 11429)]