20485404

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{13879}}^1$

素因数の和:13930

約数の個数: 36

約数和(自身を含む): 53049360

約数和(自身を除く): 32563956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1476, 13879, 27758, 41637, 55516, 83274, 124911, 166548, 249822, 499644, 569039, 1138078, 1707117, 2276156, 3414234, 5121351, 6828468, 10242702, 20485404]

約数ペア:

[(1, 20485404), (2, 10242702), (3, 6828468), (4, 5121351), (6, 3414234), (9, 2276156), (12, 1707117), (18, 1138078), (36, 569039), (41, 499644), (82, 249822), (123, 166548), (164, 124911), (246, 83274), (369, 55516), (492, 41637), (738, 27758), (1476, 13879)]