21007741821

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1866857}}^1$

素因数の和:1866913

約数の個数: 24

約数和(自身を含む): 31781390592

約数和(自身を除く): 10773648771

約数列:

[1, 3, 11, 31, 33, 93, 121, 341, 363, 1023, 3751, 11253, 1866857, 5600571, 20535427, 57872567, 61606281, 173617701, 225889697, 636598237, 677669091, 1909794711, 7002580607, 21007741821]

約数ペア:

[(1, 21007741821), (3, 7002580607), (11, 1909794711), (31, 677669091), (33, 636598237), (93, 225889697), (121, 173617701), (341, 61606281), (363, 57872567), (1023, 20535427), (3751, 5600571), (11253, 1866857)]