19923860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8233}}^1$

素因数の和:8264

約数の個数: 36

約数和(自身を含む): 45995124

約数和(自身を除く): 26071264

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8233, 16466, 32932, 41165, 82330, 90563, 164660, 181126, 362252, 452815, 905630, 996193, 1811260, 1992386, 3984772, 4980965, 9961930, 19923860]

約数ペア:

[(1, 19923860), (2, 9961930), (4, 4980965), (5, 3984772), (10, 1992386), (11, 1811260), (20, 996193), (22, 905630), (44, 452815), (55, 362252), (110, 181126), (121, 164660), (220, 90563), (242, 82330), (484, 41165), (605, 32932), (1210, 16466), (2420, 8233)]