21903876

素因数分解:

$2^2\times 3^2\times {\mathrm{173}}^1\times {\mathrm{3517}}^1$

素因数の和:3700

約数の個数: 36

約数和(自身を含む): 55704012

約数和(自身を除く): 33800136

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 173, 346, 519, 692, 1038, 1557, 2076, 3114, 3517, 6228, 7034, 10551, 14068, 21102, 31653, 42204, 63306, 126612, 608441, 1216882, 1825323, 2433764, 3650646, 5475969, 7301292, 10951938, 21903876]

約数ペア:

[(1, 21903876), (2, 10951938), (3, 7301292), (4, 5475969), (6, 3650646), (9, 2433764), (12, 1825323), (18, 1216882), (36, 608441), (173, 126612), (346, 63306), (519, 42204), (692, 31653), (1038, 21102), (1557, 14068), (2076, 10551), (3114, 7034), (3517, 6228)]