21420244

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{673}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 38404520

約数和(自身を除く): 16984276

約数列:

[1, 2, 4, 73, 109, 146, 218, 292, 436, 673, 1346, 2692, 7957, 15914, 31828, 49129, 73357, 98258, 146714, 196516, 293428, 5355061, 10710122, 21420244]

約数ペア:

[(1, 21420244), (2, 10710122), (4, 5355061), (73, 293428), (109, 196516), (146, 146714), (218, 98258), (292, 73357), (436, 49129), (673, 31828), (1346, 15914), (2692, 7957)]