18928168

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1489}}^1$

素因数の和:1729

約数の個数: 32

約数和(自身を含む): 40766400

約数和(自身を除く): 21838232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1489, 1589, 1816, 2978, 3178, 5956, 6356, 10423, 11912, 12712, 20846, 41692, 83384, 338003, 676006, 1352012, 2366021, 2704024, 4732042, 9464084, 18928168]

約数ペア:

[(1, 18928168), (2, 9464084), (4, 4732042), (7, 2704024), (8, 2366021), (14, 1352012), (28, 676006), (56, 338003), (227, 83384), (454, 41692), (908, 20846), (1489, 12712), (1589, 11912), (1816, 10423), (2978, 6356), (3178, 5956)]