21890764

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45989}}^1$

素因数の和:46017

約数の個数: 24

約数和(自身を含む): 46357920

約数和(自身を除く): 24467156

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45989, 91978, 183956, 321923, 643846, 781813, 1287692, 1563626, 3127252, 5472691, 10945382, 21890764]

約数ペア:

[(1, 21890764), (2, 10945382), (4, 5472691), (7, 3127252), (14, 1563626), (17, 1287692), (28, 781813), (34, 643846), (68, 321923), (119, 183956), (238, 91978), (476, 45989)]