21870933

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{22159}}^1$

素因数の和:22216

約数の個数: 16

約数和(自身を含む): 34037760

約数和(自身を除く): 12166827

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 22159, 66477, 155113, 465339, 1041473, 3124419, 7290311, 21870933]

約数ペア:

[(1, 21870933), (3, 7290311), (7, 3124419), (21, 1041473), (47, 465339), (141, 155113), (329, 66477), (987, 22159)]