19540004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 39989376

約数和(自身を除く): 20449372

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 151, 173, 187, 302, 346, 374, 604, 692, 748, 1661, 1903, 2567, 2941, 3322, 3806, 5134, 5882, 6644, 7612, 10268, 11764, 26123, 28237, 32351, 52246, 56474, 64702, 104492, 112948, 129404, 287353, 444091, 574706, 888182, 1149412, 1776364, 4885001, 9770002, 19540004]

約数ペア:

[(1, 19540004), (2, 9770002), (4, 4885001), (11, 1776364), (17, 1149412), (22, 888182), (34, 574706), (44, 444091), (68, 287353), (151, 129404), (173, 112948), (187, 104492), (302, 64702), (346, 56474), (374, 52246), (604, 32351), (692, 28237), (748, 26123), (1661, 11764), (1903, 10268), (2567, 7612), (2941, 6644), (3322, 5882), (3806, 5134)]