19989398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1889}}^1$

素因数の和:1952

約数の個数: 32

約数和(自身を含む): 36197280

約数和(自身を除く): 16207882

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 143, 286, 407, 481, 814, 962, 1889, 3778, 5291, 10582, 20779, 24557, 41558, 49114, 69893, 139786, 270127, 540254, 768823, 908609, 1537646, 1817218, 9994699, 19989398]

約数ペア:

[(1, 19989398), (2, 9994699), (11, 1817218), (13, 1537646), (22, 908609), (26, 768823), (37, 540254), (74, 270127), (143, 139786), (286, 69893), (407, 49114), (481, 41558), (814, 24557), (962, 20779), (1889, 10582), (3778, 5291)]