21390456

素因数分解:

$2^3\times 3^1\times {\mathrm{773}}^1\times {\mathrm{1153}}^1$

素因数の和:1935

約数の個数: 32

約数和(自身を含む): 53591760

約数和(自身を除く): 32201304

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 773, 1153, 1546, 2306, 2319, 3092, 3459, 4612, 4638, 6184, 6918, 9224, 9276, 13836, 18552, 27672, 891269, 1782538, 2673807, 3565076, 5347614, 7130152, 10695228, 21390456]

約数ペア:

[(1, 21390456), (2, 10695228), (3, 7130152), (4, 5347614), (6, 3565076), (8, 2673807), (12, 1782538), (24, 891269), (773, 27672), (1153, 18552), (1546, 13836), (2306, 9276), (2319, 9224), (3092, 6918), (3459, 6184), (4612, 4638)]