21494745

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10163}}^1$

素因数の和:10221

約数の個数: 24

約数和(自身を含む): 38054016

約数和(自身を除く): 16559271

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 10163, 30489, 50815, 91467, 152445, 457335, 477661, 1432983, 2388305, 4298949, 7164915, 21494745]

約数ペア:

[(1, 21494745), (3, 7164915), (5, 4298949), (9, 2388305), (15, 1432983), (45, 477661), (47, 457335), (141, 152445), (235, 91467), (423, 50815), (705, 30489), (2115, 10163)]