211671999

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 402554880

約数和(自身を除く): 190882881

約数列:

[1, 3, 7, 9, 11, 21, 31, 33, 59, 63, 77, 93, 99, 167, 177, 217, 231, 279, 341, 413, 501, 531, 649, 651, 693, 1023, 1169, 1239, 1503, 1829, 1837, 1947, 1953, 2387, 3069, 3507, 3717, 4543, 5177, 5487, 5511, 5841, 7161, 9853, 10521, 12803, 12859, 13629, 15531, 16461, 16533, 20119, 21483, 29559, 36239, 38409, 38577, 40887, 46593, 56947, 60357, 68971, 88677, 108383, 108717, 115227, 115731, 140833, 170841, 181071, 206913, 305443, 325149, 326151, 398629, 422499, 512523, 620739, 758681, 916329, 975447, 1195887, 1267497, 2138101, 2276043, 2748987, 3359873, 3587661, 6414303, 6828129, 10079619, 19242909, 23519111, 30238857, 70557333, 211671999]

約数ペア:

[(1, 211671999), (3, 70557333), (7, 30238857), (9, 23519111), (11, 19242909), (21, 10079619), (31, 6828129), (33, 6414303), (59, 3587661), (63, 3359873), (77, 2748987), (93, 2276043), (99, 2138101), (167, 1267497), (177, 1195887), (217, 975447), (231, 916329), (279, 758681), (341, 620739), (413, 512523), (501, 422499), (531, 398629), (649, 326151), (651, 325149), (693, 305443), (1023, 206913), (1169, 181071), (1239, 170841), (1503, 140833), (1829, 115731), (1837, 115227), (1947, 108717), (1953, 108383), (2387, 88677), (3069, 68971), (3507, 60357), (3717, 56947), (4543, 46593), (5177, 40887), (5487, 38577), (5511, 38409), (5841, 36239), (7161, 29559), (9853, 21483), (10521, 20119), (12803, 16533), (12859, 16461), (13629, 15531)]