21019921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{349}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 23461200

約数和(自身を除く): 2441279

約数列:

[1, 13, 41, 113, 349, 533, 1469, 4537, 4633, 14309, 39437, 60229, 186017, 512681, 1616917, 21019921]

約数ペア:

[(1, 21019921), (13, 1616917), (41, 512681), (113, 186017), (349, 60229), (533, 39437), (1469, 14309), (4537, 4633)]