21197904

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 160

約数和(自身を含む): 70662144

約数和(自身を除く): 49464240

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 23, 24, 26, 28, 39, 42, 46, 48, 52, 56, 69, 78, 84, 91, 92, 104, 112, 138, 156, 161, 168, 182, 184, 208, 211, 273, 276, 299, 312, 322, 336, 364, 368, 422, 483, 546, 552, 598, 624, 633, 644, 728, 844, 897, 966, 1092, 1104, 1196, 1266, 1288, 1456, 1477, 1688, 1794, 1932, 2093, 2184, 2392, 2532, 2576, 2743, 2954, 3376, 3588, 3864, 4186, 4368, 4431, 4784, 4853, 5064, 5486, 5908, 6279, 7176, 7728, 8229, 8372, 8862, 9706, 10128, 10972, 11816, 12558, 14352, 14559, 16458, 16744, 17724, 19201, 19412, 21944, 23632, 25116, 29118, 32916, 33488, 33971, 35448, 38402, 38824, 43888, 50232, 57603, 58236, 63089, 65832, 67942, 70896, 76804, 77648, 100464, 101913, 115206, 116472, 126178, 131664, 135884, 153608, 189267, 203826, 230412, 232944, 252356, 271768, 307216, 378534, 407652, 441623, 460824, 504712, 543536, 757068, 815304, 883246, 921648, 1009424, 1324869, 1514136, 1630608, 1766492, 2649738, 3028272, 3532984, 5299476, 7065968, 10598952, 21197904]

約数ペア:

[(1, 21197904), (2, 10598952), (3, 7065968), (4, 5299476), (6, 3532984), (7, 3028272), (8, 2649738), (12, 1766492), (13, 1630608), (14, 1514136), (16, 1324869), (21, 1009424), (23, 921648), (24, 883246), (26, 815304), (28, 757068), (39, 543536), (42, 504712), (46, 460824), (48, 441623), (52, 407652), (56, 378534), (69, 307216), (78, 271768), (84, 252356), (91, 232944), (92, 230412), (104, 203826), (112, 189267), (138, 153608), (156, 135884), (161, 131664), (168, 126178), (182, 116472), (184, 115206), (208, 101913), (211, 100464), (273, 77648), (276, 76804), (299, 70896), (312, 67942), (322, 65832), (336, 63089), (364, 58236), (368, 57603), (422, 50232), (483, 43888), (546, 38824), (552, 38402), (598, 35448), (624, 33971), (633, 33488), (644, 32916), (728, 29118), (844, 25116), (897, 23632), (966, 21944), (1092, 19412), (1104, 19201), (1196, 17724), (1266, 16744), (1288, 16458), (1456, 14559), (1477, 14352), (1688, 12558), (1794, 11816), (1932, 10972), (2093, 10128), (2184, 9706), (2392, 8862), (2532, 8372), (2576, 8229), (2743, 7728), (2954, 7176), (3376, 6279), (3588, 5908), (3864, 5486), (4186, 5064), (4368, 4853), (4431, 4784)]