28019691

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{14347}}^1$

素因数の和:14391

約数の個数: 24

約数和(自身を含む): 47750144

約数和(自身を除く): 19730453

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 14347, 43041, 100429, 129123, 301287, 444757, 903861, 1334271, 3113299, 4002813, 9339897, 28019691]

約数ペア:

[(1, 28019691), (3, 9339897), (7, 4002813), (9, 3113299), (21, 1334271), (31, 903861), (63, 444757), (93, 301287), (217, 129123), (279, 100429), (651, 43041), (1953, 14347)]