21861730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8641}}^1$

素因数の和:8682

約数の個数: 32

約数和(自身を含む): 44800128

約数和(自身を除く): 22938398

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8641, 17282, 43205, 86410, 95051, 190102, 198743, 397486, 475255, 950510, 993715, 1987430, 2186173, 4372346, 10930865, 21861730]

約数ペア:

[(1, 21861730), (2, 10930865), (5, 4372346), (10, 2186173), (11, 1987430), (22, 993715), (23, 950510), (46, 475255), (55, 397486), (110, 198743), (115, 190102), (230, 95051), (253, 86410), (506, 43205), (1265, 17282), (2530, 8641)]