20986476

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1091}}^1$

素因数の和:1334

約数の個数: 48

約数和(自身を含む): 56259840

約数和(自身を除く): 35273364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 229, 458, 687, 916, 1091, 1374, 1603, 2182, 2748, 3206, 3273, 4364, 4809, 6412, 6546, 7637, 9618, 13092, 15274, 19236, 22911, 30548, 45822, 91644, 249839, 499678, 749517, 999356, 1499034, 1748873, 2998068, 3497746, 5246619, 6995492, 10493238, 20986476]

約数ペア:

[(1, 20986476), (2, 10493238), (3, 6995492), (4, 5246619), (6, 3497746), (7, 2998068), (12, 1748873), (14, 1499034), (21, 999356), (28, 749517), (42, 499678), (84, 249839), (229, 91644), (458, 45822), (687, 30548), (916, 22911), (1091, 19236), (1374, 15274), (1603, 13092), (2182, 9618), (2748, 7637), (3206, 6546), (3273, 6412), (4364, 4809)]