19211312

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{17921}}^1$

素因数の和:17996

約数の個数: 20

約数和(自身を含む): 37779576

約数和(自身を除く): 18568264

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 17921, 35842, 71684, 143368, 286736, 1200707, 2401414, 4802828, 9605656, 19211312]

約数ペア:

[(1, 19211312), (2, 9605656), (4, 4802828), (8, 2401414), (16, 1200707), (67, 286736), (134, 143368), (268, 71684), (536, 35842), (1072, 17921)]