19645496612

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5047661}}^1$

素因数の和:5047811

約数の個数: 24

約数和(自身を含む): 39573670080

約数和(自身を除く): 19928173468

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5047661, 10095322, 20190644, 35333627, 70667254, 141334508, 701624879, 1403249758, 2806499516, 4911374153, 9822748306, 19645496612]

約数ペア:

[(1, 19645496612), (2, 9822748306), (4, 4911374153), (7, 2806499516), (14, 1403249758), (28, 701624879), (139, 141334508), (278, 70667254), (556, 35333627), (973, 20190644), (1946, 10095322), (3892, 5047661)]