21033063

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 13561497

約数列:

[1, 3, 9, 17, 23, 43, 51, 69, 129, 139, 153, 207, 387, 391, 417, 731, 989, 1173, 1251, 2193, 2363, 2967, 3197, 3519, 5977, 6579, 7089, 8901, 9591, 16813, 17931, 21267, 28773, 50439, 53793, 54349, 101609, 137471, 151317, 163047, 304827, 412413, 489141, 914481, 1237239, 2337007, 7011021, 21033063]

約数ペア:

[(1, 21033063), (3, 7011021), (9, 2337007), (17, 1237239), (23, 914481), (43, 489141), (51, 412413), (69, 304827), (129, 163047), (139, 151317), (153, 137471), (207, 101609), (387, 54349), (391, 53793), (417, 50439), (731, 28773), (989, 21267), (1173, 17931), (1251, 16813), (2193, 9591), (2363, 8901), (2967, 7089), (3197, 6579), (3519, 5977)]