21697776

素因数分解:

$2^4\times 3^2\times {\mathrm{53}}^1\times {\mathrm{2843}}^1$

素因数の和:2910

約数の個数: 60

約数和(自身を含む): 61891128

約数和(自身を除く): 40193352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 53, 72, 106, 144, 159, 212, 318, 424, 477, 636, 848, 954, 1272, 1908, 2544, 2843, 3816, 5686, 7632, 8529, 11372, 17058, 22744, 25587, 34116, 45488, 51174, 68232, 102348, 136464, 150679, 204696, 301358, 409392, 452037, 602716, 904074, 1205432, 1356111, 1808148, 2410864, 2712222, 3616296, 5424444, 7232592, 10848888, 21697776]

約数ペア:

[(1, 21697776), (2, 10848888), (3, 7232592), (4, 5424444), (6, 3616296), (8, 2712222), (9, 2410864), (12, 1808148), (16, 1356111), (18, 1205432), (24, 904074), (36, 602716), (48, 452037), (53, 409392), (72, 301358), (106, 204696), (144, 150679), (159, 136464), (212, 102348), (318, 68232), (424, 51174), (477, 45488), (636, 34116), (848, 25587), (954, 22744), (1272, 17058), (1908, 11372), (2544, 8529), (2843, 7632), (3816, 5686)]