21987352

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{58477}}^1$

素因数の和:58530

約数の個数: 16

約数和(自身を含む): 42104160

約数和(自身を除く): 20116808

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 58477, 116954, 233908, 467816, 2748419, 5496838, 10993676, 21987352]

約数ペア:

[(1, 21987352), (2, 10993676), (4, 5496838), (8, 2748419), (47, 467816), (94, 233908), (188, 116954), (376, 58477)]