21995477

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{587}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 25909632

約数和(自身を除く): 3914155

約数列:

[1, 7, 53, 101, 371, 587, 707, 4109, 5353, 31111, 37471, 59287, 217777, 415009, 3142211, 21995477]

約数ペア:

[(1, 21995477), (7, 3142211), (53, 415009), (101, 217777), (371, 59287), (587, 37471), (707, 31111), (4109, 5353)]