21604616

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2531}}^1$

素因数の和:2645

約数の個数: 32

約数和(自身を含む): 44664480

約数和(自身を除く): 23059864

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2531, 4268, 5062, 8536, 10124, 20248, 27841, 55682, 111364, 222728, 245507, 491014, 982028, 1964056, 2700577, 5401154, 10802308, 21604616]

約数ペア:

[(1, 21604616), (2, 10802308), (4, 5401154), (8, 2700577), (11, 1964056), (22, 982028), (44, 491014), (88, 245507), (97, 222728), (194, 111364), (388, 55682), (776, 27841), (1067, 20248), (2134, 10124), (2531, 8536), (4268, 5062)]