21273760

素因数分解:

$2^5\times 5^1\times {\mathrm{132961}}^1$

素因数の和:132976

約数の個数: 24

約数和(自身を含む): 50259636

約数和(自身を除く): 28985876

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132961, 265922, 531844, 664805, 1063688, 1329610, 2127376, 2659220, 4254752, 5318440, 10636880, 21273760]

約数ペア:

[(1, 21273760), (2, 10636880), (4, 5318440), (5, 4254752), (8, 2659220), (10, 2127376), (16, 1329610), (20, 1063688), (32, 664805), (40, 531844), (80, 265922), (160, 132961)]