1213681390

素因数分解:

$2^1\times 5^1\times {\mathrm{8821}}^1\times {\mathrm{13759}}^1$

素因数の和:22587

約数の個数: 16

約数和(自身を含む): 2185032960

約数和(自身を除く): 971351570

約数列:

[1, 2, 5, 10, 8821, 13759, 17642, 27518, 44105, 68795, 88210, 137590, 121368139, 242736278, 606840695, 1213681390]

約数ペア:

[(1, 1213681390), (2, 606840695), (5, 242736278), (10, 121368139), (8821, 137590), (13759, 88210), (17642, 68795), (27518, 44105)]