216936699

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 362880000

約数和(自身を除く): 145943301

約数列:

[1, 3, 7, 19, 21, 41, 57, 89, 123, 133, 149, 267, 287, 399, 447, 623, 779, 861, 1043, 1691, 1869, 2337, 2831, 3129, 3649, 5073, 5453, 6109, 8493, 10947, 11837, 13261, 16359, 18327, 19817, 25543, 35511, 39783, 42763, 59451, 69331, 76629, 92827, 116071, 128289, 207993, 251959, 278481, 348213, 485317, 543701, 755877, 812497, 1455951, 1631103, 1763713, 2437491, 3805907, 5291139, 10330319, 11417721, 30990957, 72312233, 216936699]

約数ペア:

[(1, 216936699), (3, 72312233), (7, 30990957), (19, 11417721), (21, 10330319), (41, 5291139), (57, 3805907), (89, 2437491), (123, 1763713), (133, 1631103), (149, 1455951), (267, 812497), (287, 755877), (399, 543701), (447, 485317), (623, 348213), (779, 278481), (861, 251959), (1043, 207993), (1691, 128289), (1869, 116071), (2337, 92827), (2831, 76629), (3129, 69331), (3649, 59451), (5073, 42763), (5453, 39783), (6109, 35511), (8493, 25543), (10947, 19817), (11837, 18327), (13261, 16359)]