19899268

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1811}}^1$

素因数の和:1923

約数の個数: 24

約数和(自身を含む): 36225504

約数和(自身を除く): 16326236

約数列:

[1, 2, 4, 41, 67, 82, 134, 164, 268, 1811, 2747, 3622, 5494, 7244, 10988, 74251, 121337, 148502, 242674, 297004, 485348, 4974817, 9949634, 19899268]

約数ペア:

[(1, 19899268), (2, 9949634), (4, 4974817), (41, 485348), (67, 297004), (82, 242674), (134, 148502), (164, 121337), (268, 74251), (1811, 10988), (2747, 7244), (3622, 5494)]