21840152

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{4259}}^1$

素因数の和:4906

約数の個数: 16

約数和(自身を含む): 41023800

約数和(自身を除く): 19183648

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 4259, 5128, 8518, 17036, 34072, 2730019, 5460038, 10920076, 21840152]

約数ペア:

[(1, 21840152), (2, 10920076), (4, 5460038), (8, 2730019), (641, 34072), (1282, 17036), (2564, 8518), (4259, 5128)]