217639376

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{715919}}^1$

素因数の和:715946

約数の個数: 20

約数和(自身を含む): 443870400

約数和(自身を除く): 226231024

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 715919, 1431838, 2863676, 5727352, 11454704, 13602461, 27204922, 54409844, 108819688, 217639376]

約数ペア:

[(1, 217639376), (2, 108819688), (4, 54409844), (8, 27204922), (16, 13602461), (19, 11454704), (38, 5727352), (76, 2863676), (152, 1431838), (304, 715919)]