210921490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1622473}}^1$

素因数の和:1622493

約数の個数: 16

約数和(自身を含む): 408863448

約数和(自身を除く): 197941958

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1622473, 3244946, 8112365, 16224730, 21092149, 42184298, 105460745, 210921490]

約数ペア:

[(1, 210921490), (2, 105460745), (5, 42184298), (10, 21092149), (13, 16224730), (26, 8112365), (65, 3244946), (130, 1622473)]