643924788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4127723}}^1$

素因数の和:4127743

約数の個数: 24

約数和(自身を含む): 1618067808

約数和(自身を除く): 974143020

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 4127723, 8255446, 12383169, 16510892, 24766338, 49532676, 53660399, 107320798, 160981197, 214641596, 321962394, 643924788]

約数ペア:

[(1, 643924788), (2, 321962394), (3, 214641596), (4, 160981197), (6, 107320798), (12, 53660399), (13, 49532676), (26, 24766338), (39, 16510892), (52, 12383169), (78, 8255446), (156, 4127723)]