18388664

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8009}}^1$

素因数の和:8063

約数の個数: 32

約数和(自身を含む): 40370400

約数和(自身を除く): 21981736

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 8009, 16018, 32036, 56063, 64072, 112126, 224252, 328369, 448504, 656738, 1313476, 2298583, 2626952, 4597166, 9194332, 18388664]

約数ペア:

[(1, 18388664), (2, 9194332), (4, 4597166), (7, 2626952), (8, 2298583), (14, 1313476), (28, 656738), (41, 448504), (56, 328369), (82, 224252), (164, 112126), (287, 64072), (328, 56063), (574, 32036), (1148, 16018), (2296, 8009)]