21996790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{751}}^1$

素因数の和:888

約数の個数: 32

約数和(自身を含む): 41420160

約数和(自身を除く): 19423370

約数列:

[1, 2, 5, 10, 29, 58, 101, 145, 202, 290, 505, 751, 1010, 1502, 2929, 3755, 5858, 7510, 14645, 21779, 29290, 43558, 75851, 108895, 151702, 217790, 379255, 758510, 2199679, 4399358, 10998395, 21996790]

約数ペア:

[(1, 21996790), (2, 10998395), (5, 4399358), (10, 2199679), (29, 758510), (58, 379255), (101, 217790), (145, 151702), (202, 108895), (290, 75851), (505, 43558), (751, 29290), (1010, 21779), (1502, 14645), (2929, 7510), (3755, 5858)]