21663804

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 52448256

約数和(自身を除く): 30784452

約数列:

[1, 2, 3, 4, 6, 12, 47, 71, 94, 141, 142, 188, 213, 282, 284, 426, 541, 564, 852, 1082, 1623, 2164, 3246, 3337, 6492, 6674, 10011, 13348, 20022, 25427, 38411, 40044, 50854, 76281, 76822, 101708, 115233, 152562, 153644, 230466, 305124, 460932, 1805317, 3610634, 5415951, 7221268, 10831902, 21663804]

約数ペア:

[(1, 21663804), (2, 10831902), (3, 7221268), (4, 5415951), (6, 3610634), (12, 1805317), (47, 460932), (71, 305124), (94, 230466), (141, 153644), (142, 152562), (188, 115233), (213, 101708), (282, 76822), (284, 76281), (426, 50854), (541, 40044), (564, 38411), (852, 25427), (1082, 20022), (1623, 13348), (2164, 10011), (3246, 6674), (3337, 6492)]