21609170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6337}}^1$

素因数の和:6386

約数の個数: 32

約数和(自身を含む): 43808256

約数和(自身を除く): 22199086

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 6337, 12674, 31685, 63370, 69707, 139414, 196447, 348535, 392894, 697070, 982235, 1964470, 2160917, 4321834, 10804585, 21609170]

約数ペア:

[(1, 21609170), (2, 10804585), (5, 4321834), (10, 2160917), (11, 1964470), (22, 982235), (31, 697070), (55, 392894), (62, 348535), (110, 196447), (155, 139414), (310, 69707), (341, 63370), (682, 31685), (1705, 12674), (3410, 6337)]