21221844

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{252641}}^1$

素因数の和:252655

約数の個数: 24

約数和(自身を含む): 56591808

約数和(自身を除く): 35369964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 252641, 505282, 757923, 1010564, 1515846, 1768487, 3031692, 3536974, 5305461, 7073948, 10610922, 21221844]

約数ペア:

[(1, 21221844), (2, 10610922), (3, 7073948), (4, 5305461), (6, 3536974), (7, 3031692), (12, 1768487), (14, 1515846), (21, 1010564), (28, 757923), (42, 505282), (84, 252641)]