18919390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38611}}^1$

素因数の和:38632

約数の個数: 24

約数和(自身を含む): 39615912

約数和(自身を除く): 20696522

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38611, 77222, 193055, 270277, 386110, 540554, 1351385, 1891939, 2702770, 3783878, 9459695, 18919390]

約数ペア:

[(1, 18919390), (2, 9459695), (5, 3783878), (7, 2702770), (10, 1891939), (14, 1351385), (35, 540554), (49, 386110), (70, 270277), (98, 193055), (245, 77222), (490, 38611)]