28155321

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{719}}^1$

素因数の和:973

約数の個数: 24

約数和(自身を含む): 43056000

約数和(自身を除く): 14900679

約数列:

[1, 3, 9, 19, 57, 171, 229, 687, 719, 2061, 2157, 4351, 6471, 13053, 13661, 39159, 40983, 122949, 164651, 493953, 1481859, 3128369, 9385107, 28155321]

約数ペア:

[(1, 28155321), (3, 9385107), (9, 3128369), (19, 1481859), (57, 493953), (171, 164651), (229, 122949), (687, 40983), (719, 39159), (2061, 13661), (2157, 13053), (4351, 6471)]