21851641340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2939}}^1\times {\mathrm{4177}}^1$

素因数の和:7214

約数の個数: 48

約数和(自身を含む): 46430949600

約数和(自身を除く): 24579308260

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 2939, 4177, 5878, 8354, 11756, 14695, 16708, 20885, 29390, 41770, 58780, 83540, 261571, 371753, 523142, 743506, 1046284, 1307855, 1487012, 1858765, 2615710, 3717530, 5231420, 7435060, 12276203, 24552406, 49104812, 61381015, 122762030, 245524060, 1092582067, 2185164134, 4370328268, 5462910335, 10925820670, 21851641340]

約数ペア:

[(1, 21851641340), (2, 10925820670), (4, 5462910335), (5, 4370328268), (10, 2185164134), (20, 1092582067), (89, 245524060), (178, 122762030), (356, 61381015), (445, 49104812), (890, 24552406), (1780, 12276203), (2939, 7435060), (4177, 5231420), (5878, 3717530), (8354, 2615710), (11756, 1858765), (14695, 1487012), (16708, 1307855), (20885, 1046284), (29390, 743506), (41770, 523142), (58780, 371753), (83540, 261571)]