19980786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1693}}^1$

素因数の和:1986

約数の個数: 32

約数和(自身を含む): 45859968

約数和(自身を除く): 25879182

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 281, 562, 843, 1686, 1693, 1967, 3386, 3934, 5079, 5901, 10158, 11802, 11851, 23702, 35553, 71106, 475733, 951466, 1427199, 2854398, 3330131, 6660262, 9990393, 19980786]

約数ペア:

[(1, 19980786), (2, 9990393), (3, 6660262), (6, 3330131), (7, 2854398), (14, 1427199), (21, 951466), (42, 475733), (281, 71106), (562, 35553), (843, 23702), (1686, 11851), (1693, 11802), (1967, 10158), (3386, 5901), (3934, 5079)]