20861345

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{641}}^1$

素因数の和:952

約数の個数: 16

約数和(自身を含む): 26255232

約数和(自身を除く): 5393887

約数列:

[1, 5, 23, 115, 283, 641, 1415, 3205, 6509, 14743, 32545, 73715, 181403, 907015, 4172269, 20861345]

約数ペア:

[(1, 20861345), (5, 4172269), (23, 907015), (115, 181403), (283, 73715), (641, 32545), (1415, 14743), (3205, 6509)]