21016202

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1\times {\mathrm{809}}^1$

素因数の和:1261

約数の個数: 16

約数和(自身を含む): 32659200

約数和(自身を除く): 11642998

約数列:

[1, 2, 31, 62, 419, 809, 838, 1618, 12989, 25079, 25978, 50158, 338971, 677942, 10508101, 21016202]

約数ペア:

[(1, 21016202), (2, 10508101), (31, 677942), (62, 338971), (419, 50158), (809, 25978), (838, 25079), (1618, 12989)]