21125470

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{673}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 39501792

約数和(自身を除く): 18376322

約数列:

[1, 2, 5, 10, 43, 73, 86, 146, 215, 365, 430, 673, 730, 1346, 3139, 3365, 6278, 6730, 15695, 28939, 31390, 49129, 57878, 98258, 144695, 245645, 289390, 491290, 2112547, 4225094, 10562735, 21125470]

約数ペア:

[(1, 21125470), (2, 10562735), (5, 4225094), (10, 2112547), (43, 491290), (73, 289390), (86, 245645), (146, 144695), (215, 98258), (365, 57878), (430, 49129), (673, 31390), (730, 28939), (1346, 15695), (3139, 6730), (3365, 6278)]