21523520

素因数分解:

$2^6\times 5^1\times {\mathrm{67261}}^1$

素因数の和:67278

約数の個数: 28

約数和(自身を含む): 51253644

約数和(自身を除く): 29730124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67261, 134522, 269044, 336305, 538088, 672610, 1076176, 1345220, 2152352, 2690440, 4304704, 5380880, 10761760, 21523520]

約数ペア:

[(1, 21523520), (2, 10761760), (4, 5380880), (5, 4304704), (8, 2690440), (10, 2152352), (16, 1345220), (20, 1076176), (32, 672610), (40, 538088), (64, 336305), (80, 269044), (160, 134522), (320, 67261)]