20354964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{547}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 54501888

約数和(自身を除く): 34146924

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 443, 547, 886, 1094, 1329, 1641, 1772, 2188, 2658, 3101, 3282, 3829, 5316, 6202, 6564, 7658, 9303, 11487, 12404, 15316, 18606, 22974, 37212, 45948, 242321, 484642, 726963, 969284, 1453926, 1696247, 2907852, 3392494, 5088741, 6784988, 10177482, 20354964]

約数ペア:

[(1, 20354964), (2, 10177482), (3, 6784988), (4, 5088741), (6, 3392494), (7, 2907852), (12, 1696247), (14, 1453926), (21, 969284), (28, 726963), (42, 484642), (84, 242321), (443, 45948), (547, 37212), (886, 22974), (1094, 18606), (1329, 15316), (1641, 12404), (1772, 11487), (2188, 9303), (2658, 7658), (3101, 6564), (3282, 6202), (3829, 5316)]