21981264

素因数分解:

$2^4\times 3^1\times {\mathrm{457943}}^1$

素因数の和:457954

約数の個数: 20

約数和(自身を含む): 56785056

約数和(自身を除く): 34803792

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 457943, 915886, 1373829, 1831772, 2747658, 3663544, 5495316, 7327088, 10990632, 21981264]

約数ペア:

[(1, 21981264), (2, 10990632), (3, 7327088), (4, 5495316), (6, 3663544), (8, 2747658), (12, 1831772), (16, 1373829), (24, 915886), (48, 457943)]