21039572

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3221}}^1$

素因数の和:3319

約数の個数: 24

約数和(自身を含む): 38973312

約数和(自身を除く): 17933740

約数列:

[1, 2, 4, 23, 46, 71, 92, 142, 284, 1633, 3221, 3266, 6442, 6532, 12884, 74083, 148166, 228691, 296332, 457382, 914764, 5259893, 10519786, 21039572]

約数ペア:

[(1, 21039572), (2, 10519786), (4, 5259893), (23, 914764), (46, 457382), (71, 296332), (92, 228691), (142, 148166), (284, 74083), (1633, 12884), (3221, 6532), (3266, 6442)]