21396076

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1082

約数の個数: 36

約数和(自身を含む): 41893824

約数和(自身を除く): 20497748

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 676, 806, 1021, 1612, 2042, 4084, 5239, 10478, 13273, 20956, 26546, 31651, 53092, 63302, 126604, 172549, 345098, 411463, 690196, 822926, 1645852, 5349019, 10698038, 21396076]

約数ペア:

[(1, 21396076), (2, 10698038), (4, 5349019), (13, 1645852), (26, 822926), (31, 690196), (52, 411463), (62, 345098), (124, 172549), (169, 126604), (338, 63302), (403, 53092), (676, 31651), (806, 26546), (1021, 20956), (1612, 13273), (2042, 10478), (4084, 5239)]