20521919

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{659}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 3238081

約数列:

[1, 11, 19, 149, 209, 659, 1639, 2831, 7249, 12521, 31141, 98191, 137731, 1080101, 1865629, 20521919]

約数ペア:

[(1, 20521919), (11, 1865629), (19, 1080101), (149, 137731), (209, 98191), (659, 31141), (1639, 12521), (2831, 7249)]