19749644

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 35326368

約数和(自身を除く): 15576724

約数列:

[1, 2, 4, 71, 142, 197, 284, 353, 394, 706, 788, 1412, 13987, 25063, 27974, 50126, 55948, 69541, 100252, 139082, 278164, 4937411, 9874822, 19749644]

約数ペア:

[(1, 19749644), (2, 9874822), (4, 4937411), (71, 278164), (142, 139082), (197, 100252), (284, 69541), (353, 55948), (394, 50126), (706, 27974), (788, 25063), (1412, 13987)]