21531708

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{4943}}^1$

素因数の和:4975

約数の個数: 54

約数和(自身を含む): 59837232

約数和(自身を除く): 38305524

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 726, 1089, 1452, 2178, 4356, 4943, 9886, 14829, 19772, 29658, 44487, 54373, 59316, 88974, 108746, 163119, 177948, 217492, 326238, 489357, 598103, 652476, 978714, 1196206, 1794309, 1957428, 2392412, 3588618, 5382927, 7177236, 10765854, 21531708]

約数ペア:

[(1, 21531708), (2, 10765854), (3, 7177236), (4, 5382927), (6, 3588618), (9, 2392412), (11, 1957428), (12, 1794309), (18, 1196206), (22, 978714), (33, 652476), (36, 598103), (44, 489357), (66, 326238), (99, 217492), (121, 177948), (132, 163119), (198, 108746), (242, 88974), (363, 59316), (396, 54373), (484, 44487), (726, 29658), (1089, 19772), (1452, 14829), (2178, 9886), (4356, 4943)]