19939324

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{401}}^2$

素因数の和:837

約数の個数: 18

約数和(自身を含む): 36109472

約数和(自身を除く): 16170148

約数列:

[1, 2, 4, 31, 62, 124, 401, 802, 1604, 12431, 24862, 49724, 160801, 321602, 643204, 4984831, 9969662, 19939324]

約数ペア:

[(1, 19939324), (2, 9969662), (4, 4984831), (31, 643204), (62, 321602), (124, 160801), (401, 49724), (802, 24862), (1604, 12431)]