21265692

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{661}}^1$

素因数の和:1058

約数の個数: 48

約数和(自身を含む): 56942592

約数和(自身を除く): 35676900

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 383, 661, 766, 1149, 1322, 1532, 1983, 2298, 2644, 2681, 3966, 4596, 4627, 5362, 7932, 8043, 9254, 10724, 13881, 16086, 18508, 27762, 32172, 55524, 253163, 506326, 759489, 1012652, 1518978, 1772141, 3037956, 3544282, 5316423, 7088564, 10632846, 21265692]

約数ペア:

[(1, 21265692), (2, 10632846), (3, 7088564), (4, 5316423), (6, 3544282), (7, 3037956), (12, 1772141), (14, 1518978), (21, 1012652), (28, 759489), (42, 506326), (84, 253163), (383, 55524), (661, 32172), (766, 27762), (1149, 18508), (1322, 16086), (1532, 13881), (1983, 10724), (2298, 9254), (2644, 8043), (2681, 7932), (3966, 5362), (4596, 4627)]