19872944

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13649}}^1$

素因数の和:13677

約数の個数: 40

約数和(自身を含む): 47392800

約数和(自身を除く): 27519856

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13649, 27298, 54596, 95543, 109192, 177437, 191086, 218384, 354874, 382172, 709748, 764344, 1242059, 1419496, 1528688, 2484118, 2838992, 4968236, 9936472, 19872944]

約数ペア:

[(1, 19872944), (2, 9936472), (4, 4968236), (7, 2838992), (8, 2484118), (13, 1528688), (14, 1419496), (16, 1242059), (26, 764344), (28, 709748), (52, 382172), (56, 354874), (91, 218384), (104, 191086), (112, 177437), (182, 109192), (208, 95543), (364, 54596), (728, 27298), (1456, 13649)]