20354168

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7877}}^1$

素因数の和:7919

約数の個数: 32

約数和(自身を含む): 42541200

約数和(自身を除く): 22187032

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7877, 15754, 31508, 63016, 133909, 149663, 267818, 299326, 535636, 598652, 1071272, 1197304, 2544271, 5088542, 10177084, 20354168]

約数ペア:

[(1, 20354168), (2, 10177084), (4, 5088542), (8, 2544271), (17, 1197304), (19, 1071272), (34, 598652), (38, 535636), (68, 299326), (76, 267818), (136, 149663), (152, 133909), (323, 63016), (646, 31508), (1292, 15754), (2584, 7877)]