19787378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 33426624

約数和(自身を除く): 13639246

約数列:

[1, 2, 13, 26, 37, 67, 74, 134, 307, 481, 614, 871, 962, 1742, 2479, 3991, 4958, 7982, 11359, 20569, 22718, 32227, 41138, 64454, 147667, 267397, 295334, 534794, 761053, 1522106, 9893689, 19787378]

約数ペア:

[(1, 19787378), (2, 9893689), (13, 1522106), (26, 761053), (37, 534794), (67, 295334), (74, 267397), (134, 147667), (307, 64454), (481, 41138), (614, 32227), (871, 22718), (962, 20569), (1742, 11359), (2479, 7982), (3991, 4958)]