21392283

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 32401152

約数和(自身を除く): 11008869

約数列:

[1, 3, 11, 33, 41, 97, 123, 163, 291, 451, 489, 1067, 1353, 1793, 3201, 3977, 5379, 6683, 11931, 15811, 20049, 43747, 47433, 73513, 131241, 173921, 220539, 521763, 648251, 1944753, 7130761, 21392283]

約数ペア:

[(1, 21392283), (3, 7130761), (11, 1944753), (33, 648251), (41, 521763), (97, 220539), (123, 173921), (163, 131241), (291, 73513), (451, 47433), (489, 43747), (1067, 20049), (1353, 15811), (1793, 11931), (3201, 6683), (3977, 5379)]