27948921

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 51480576

約数和(自身を除く): 23531655

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 41, 77, 91, 123, 143, 227, 231, 273, 287, 429, 451, 533, 681, 861, 1001, 1353, 1589, 1599, 2497, 2951, 3003, 3157, 3731, 4767, 5863, 7491, 8853, 9307, 9471, 11193, 17479, 17589, 20657, 27921, 32461, 41041, 52437, 61971, 65149, 97383, 102377, 120991, 123123, 195447, 227227, 307131, 362973, 681681, 716639, 846937, 1330901, 2149917, 2540811, 3992703, 9316307, 27948921]

約数ペア:

[(1, 27948921), (3, 9316307), (7, 3992703), (11, 2540811), (13, 2149917), (21, 1330901), (33, 846937), (39, 716639), (41, 681681), (77, 362973), (91, 307131), (123, 227227), (143, 195447), (227, 123123), (231, 120991), (273, 102377), (287, 97383), (429, 65149), (451, 61971), (533, 52437), (681, 41041), (861, 32461), (1001, 27921), (1353, 20657), (1589, 17589), (1599, 17479), (2497, 11193), (2951, 9471), (3003, 9307), (3157, 8853), (3731, 7491), (4767, 5863)]