20394296

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10321}}^1$

素因数の和:10359

約数の個数: 32

約数和(自身を含む): 43352400

約数和(自身を除く): 22958104

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10321, 20642, 41284, 82568, 134173, 196099, 268346, 392198, 536692, 784396, 1073384, 1568792, 2549287, 5098574, 10197148, 20394296]

約数ペア:

[(1, 20394296), (2, 10197148), (4, 5098574), (8, 2549287), (13, 1568792), (19, 1073384), (26, 784396), (38, 536692), (52, 392198), (76, 268346), (104, 196099), (152, 134173), (247, 82568), (494, 41284), (988, 20642), (1976, 10321)]