21472641

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{2203}}^1$

素因数の和:2250

約数の個数: 24

約数和(自身を含む): 33588960

約数和(自身を除く): 12116319

約数列:

[1, 3, 9, 19, 27, 57, 171, 361, 513, 1083, 2203, 3249, 6609, 9747, 19827, 41857, 59481, 125571, 376713, 795283, 1130139, 2385849, 7157547, 21472641]

約数ペア:

[(1, 21472641), (3, 7157547), (9, 2385849), (19, 1130139), (27, 795283), (57, 376713), (171, 125571), (361, 59481), (513, 41857), (1083, 19827), (2203, 9747), (3249, 6609)]