19822490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27919}}^1$

素因数の和:27997

約数の個数: 16

約数和(自身を含む): 36184320

約数和(自身を除く): 16361830

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 27919, 55838, 139595, 279190, 1982249, 3964498, 9911245, 19822490]

約数ペア:

[(1, 19822490), (2, 9911245), (5, 3964498), (10, 1982249), (71, 279190), (142, 139595), (355, 55838), (710, 27919)]