21335655

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{677}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 37490688

約数和(自身を除く): 16155033

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 191, 573, 677, 955, 2031, 2101, 2865, 3385, 6303, 7447, 10155, 10505, 22341, 31515, 37235, 111705, 129307, 387921, 646535, 1422377, 1939605, 4267131, 7111885, 21335655]

約数ペア:

[(1, 21335655), (3, 7111885), (5, 4267131), (11, 1939605), (15, 1422377), (33, 646535), (55, 387921), (165, 129307), (191, 111705), (573, 37235), (677, 31515), (955, 22341), (2031, 10505), (2101, 10155), (2865, 7447), (3385, 6303)]