20721264

素因数分解:

$2^4\times 3^1\times {\mathrm{431693}}^1$

素因数の和:431704

約数の個数: 20

約数和(自身を含む): 53530056

約数和(自身を除く): 32808792

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 431693, 863386, 1295079, 1726772, 2590158, 3453544, 5180316, 6907088, 10360632, 20721264]

約数ペア:

[(1, 20721264), (2, 10360632), (3, 6907088), (4, 5180316), (6, 3453544), (8, 2590158), (12, 1726772), (16, 1295079), (24, 863386), (48, 431693)]