21861147

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{937}}^1$

素因数の和:1059

約数の個数: 32

約数和(自身を含む): 36739584

約数和(自身を除く): 14878437

約数列:

[1, 3, 7, 11, 21, 33, 77, 101, 231, 303, 707, 937, 1111, 2121, 2811, 3333, 6559, 7777, 10307, 19677, 23331, 30921, 72149, 94637, 216447, 283911, 662459, 1041007, 1987377, 3123021, 7287049, 21861147]

約数ペア:

[(1, 21861147), (3, 7287049), (7, 3123021), (11, 1987377), (21, 1041007), (33, 662459), (77, 283911), (101, 216447), (231, 94637), (303, 72149), (707, 30921), (937, 23331), (1111, 19677), (2121, 10307), (2811, 7777), (3333, 6559)]