21220626

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:919

約数の個数: 48

約数和(自身を含む): 49986720

約数和(自身を除く): 28766094

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 89, 98, 147, 178, 267, 294, 534, 623, 811, 1246, 1622, 1869, 2433, 3738, 4361, 4866, 5677, 8722, 11354, 13083, 17031, 26166, 34062, 39739, 72179, 79478, 119217, 144358, 216537, 238434, 433074, 505253, 1010506, 1515759, 3031518, 3536771, 7073542, 10610313, 21220626]

約数ペア:

[(1, 21220626), (2, 10610313), (3, 7073542), (6, 3536771), (7, 3031518), (14, 1515759), (21, 1010506), (42, 505253), (49, 433074), (89, 238434), (98, 216537), (147, 144358), (178, 119217), (267, 79478), (294, 72179), (534, 39739), (623, 34062), (811, 26166), (1246, 17031), (1622, 13083), (1869, 11354), (2433, 8722), (3738, 5677), (4361, 4866)]