21783524

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 45628800

約数和(自身を除く): 23845276

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 139, 193, 203, 278, 386, 406, 556, 772, 812, 973, 1351, 1946, 2702, 3892, 4031, 5404, 5597, 8062, 11194, 16124, 22388, 26827, 28217, 39179, 53654, 56434, 78358, 107308, 112868, 156716, 187789, 375578, 751156, 777983, 1555966, 3111932, 5445881, 10891762, 21783524]

約数ペア:

[(1, 21783524), (2, 10891762), (4, 5445881), (7, 3111932), (14, 1555966), (28, 777983), (29, 751156), (58, 375578), (116, 187789), (139, 156716), (193, 112868), (203, 107308), (278, 78358), (386, 56434), (406, 53654), (556, 39179), (772, 28217), (812, 26827), (973, 22388), (1351, 16124), (1946, 11194), (2702, 8062), (3892, 5597), (4031, 5404)]