21287172

素因数分解:

$2^2\times 3^1\times {\mathrm{1259}}^1\times {\mathrm{1409}}^1$

素因数の和:2675

約数の個数: 24

約数和(自身を含む): 49744800

約数和(自身を除く): 28457628

約数列:

[1, 2, 3, 4, 6, 12, 1259, 1409, 2518, 2818, 3777, 4227, 5036, 5636, 7554, 8454, 15108, 16908, 1773931, 3547862, 5321793, 7095724, 10643586, 21287172]

約数ペア:

[(1, 21287172), (2, 10643586), (3, 7095724), (4, 5321793), (6, 3547862), (12, 1773931), (1259, 16908), (1409, 15108), (2518, 8454), (2818, 7554), (3777, 5636), (4227, 5036)]