21682406

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 34898688

約数和(自身を除く): 13216282

約数列:

[1, 2, 43, 53, 67, 71, 86, 106, 134, 142, 2279, 2881, 3053, 3551, 3763, 4558, 4757, 5762, 6106, 7102, 7526, 9514, 152693, 161809, 204551, 252121, 305386, 323618, 409102, 504242, 10841203, 21682406]

約数ペア:

[(1, 21682406), (2, 10841203), (43, 504242), (53, 409102), (67, 323618), (71, 305386), (86, 252121), (106, 204551), (134, 161809), (142, 152693), (2279, 9514), (2881, 7526), (3053, 7102), (3551, 6106), (3763, 5762), (4558, 4757)]