21696264

素因数分解:

$2^3\times 3^2\times {\mathrm{541}}^1\times {\mathrm{557}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 58975020

約数和(自身を除く): 37278756

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 541, 557, 1082, 1114, 1623, 1671, 2164, 2228, 3246, 3342, 4328, 4456, 4869, 5013, 6492, 6684, 9738, 10026, 12984, 13368, 19476, 20052, 38952, 40104, 301337, 602674, 904011, 1205348, 1808022, 2410696, 2712033, 3616044, 5424066, 7232088, 10848132, 21696264]

約数ペア:

[(1, 21696264), (2, 10848132), (3, 7232088), (4, 5424066), (6, 3616044), (8, 2712033), (9, 2410696), (12, 1808022), (18, 1205348), (24, 904011), (36, 602674), (72, 301337), (541, 40104), (557, 38952), (1082, 20052), (1114, 19476), (1623, 13368), (1671, 12984), (2164, 10026), (2228, 9738), (3246, 6684), (3342, 6492), (4328, 5013), (4456, 4869)]