21000751877

素因数分解:

$7^2\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{22349}}^1$

素因数の和:22641

約数の個数: 24

約数和(自身を含む): 24785971200

約数和(自身を除く): 3785219323

約数列:

[1, 7, 49, 127, 151, 889, 1057, 6223, 7399, 19177, 22349, 134239, 156443, 939673, 1095101, 2838323, 3374699, 19868261, 23622893, 139077827, 165360251, 428586773, 3000107411, 21000751877]

約数ペア:

[(1, 21000751877), (7, 3000107411), (49, 428586773), (127, 165360251), (151, 139077827), (889, 23622893), (1057, 19868261), (6223, 3374699), (7399, 2838323), (19177, 1095101), (22349, 939673), (134239, 156443)]