19071728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91691}}^1$

素因数の和:91712

約数の個数: 20

約数和(自身を含む): 39794328

約数和(自身を除く): 20722600

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91691, 183382, 366764, 733528, 1191983, 1467056, 2383966, 4767932, 9535864, 19071728]

約数ペア:

[(1, 19071728), (2, 9535864), (4, 4767932), (8, 2383966), (13, 1467056), (16, 1191983), (26, 733528), (52, 366764), (104, 183382), (208, 91691)]