21699101

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 16

約数和(自身を含む): 23390208

約数和(自身を除く): 1691107

約数列:

[1, 31, 47, 53, 281, 1457, 1643, 2491, 8711, 13207, 14893, 77221, 409417, 461683, 699971, 21699101]

約数ペア:

[(1, 21699101), (31, 699971), (47, 461683), (53, 409417), (281, 77221), (1457, 14893), (1643, 13207), (2491, 8711)]