19887028

素因数分解:

$2^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{4253}}^1$

素因数の和:4431

約数の個数: 24

約数和(自身を含む): 40021632

約数和(自身を除く): 20134604

約数列:

[1, 2, 4, 7, 14, 28, 167, 334, 668, 1169, 2338, 4253, 4676, 8506, 17012, 29771, 59542, 119084, 710251, 1420502, 2841004, 4971757, 9943514, 19887028]

約数ペア:

[(1, 19887028), (2, 9943514), (4, 4971757), (7, 2841004), (14, 1420502), (28, 710251), (167, 119084), (334, 59542), (668, 29771), (1169, 17012), (2338, 8506), (4253, 4676)]