19556744

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 37884000

約数和(自身を除く): 18327256

約数列:

[1, 2, 4, 8, 43, 86, 139, 172, 278, 344, 409, 556, 818, 1112, 1636, 3272, 5977, 11954, 17587, 23908, 35174, 47816, 56851, 70348, 113702, 140696, 227404, 454808, 2444593, 4889186, 9778372, 19556744]

約数ペア:

[(1, 19556744), (2, 9778372), (4, 4889186), (8, 2444593), (43, 454808), (86, 227404), (139, 140696), (172, 113702), (278, 70348), (344, 56851), (409, 47816), (556, 35174), (818, 23908), (1112, 17587), (1636, 11954), (3272, 5977)]