19980708

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{661}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 51159360

約数和(自身を除く): 31178652

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 229, 458, 661, 687, 916, 1322, 1374, 1983, 2519, 2644, 2748, 3966, 5038, 7271, 7557, 7932, 10076, 14542, 15114, 21813, 29084, 30228, 43626, 87252, 151369, 302738, 454107, 605476, 908214, 1665059, 1816428, 3330118, 4995177, 6660236, 9990354, 19980708]

約数ペア:

[(1, 19980708), (2, 9990354), (3, 6660236), (4, 4995177), (6, 3330118), (11, 1816428), (12, 1665059), (22, 908214), (33, 605476), (44, 454107), (66, 302738), (132, 151369), (229, 87252), (458, 43626), (661, 30228), (687, 29084), (916, 21813), (1322, 15114), (1374, 14542), (1983, 10076), (2519, 7932), (2644, 7557), (2748, 7271), (3966, 5038)]