19321588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2032

約数の個数: 48

約数和(自身を含む): 42081984

約数和(自身を除く): 22760396

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1987, 2431, 3974, 4862, 7948, 9724, 21857, 25831, 33779, 43714, 51662, 67558, 87428, 103324, 135116, 284141, 371569, 439127, 568282, 743138, 878254, 1136564, 1486276, 1756508, 4830397, 9660794, 19321588]

約数ペア:

[(1, 19321588), (2, 9660794), (4, 4830397), (11, 1756508), (13, 1486276), (17, 1136564), (22, 878254), (26, 743138), (34, 568282), (44, 439127), (52, 371569), (68, 284141), (143, 135116), (187, 103324), (221, 87428), (286, 67558), (374, 51662), (442, 43714), (572, 33779), (748, 25831), (884, 21857), (1987, 9724), (2431, 7948), (3974, 4862)]