21807728

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18671}}^1$

素因数の和:18752

約数の個数: 20

約数和(自身を含む): 42833568

約数和(自身を除く): 21025840

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18671, 37342, 74684, 149368, 298736, 1362983, 2725966, 5451932, 10903864, 21807728]

約数ペア:

[(1, 21807728), (2, 10903864), (4, 5451932), (8, 2725966), (16, 1362983), (73, 298736), (146, 149368), (292, 74684), (584, 37342), (1168, 18671)]