21455826

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 33701934

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 23, 38, 42, 46, 49, 57, 69, 98, 114, 133, 138, 147, 161, 167, 266, 294, 322, 334, 399, 437, 483, 501, 798, 874, 931, 966, 1002, 1127, 1169, 1311, 1862, 2254, 2338, 2622, 2793, 3059, 3173, 3381, 3507, 3841, 5586, 6118, 6346, 6762, 7014, 7682, 8183, 9177, 9519, 11523, 16366, 18354, 19038, 21413, 22211, 23046, 24549, 26887, 42826, 44422, 49098, 53774, 64239, 66633, 72979, 80661, 128478, 133266, 145958, 155477, 161322, 188209, 218937, 310954, 376418, 437874, 466431, 510853, 564627, 932862, 1021706, 1129254, 1532559, 3065118, 3575971, 7151942, 10727913, 21455826]

約数ペア:

[(1, 21455826), (2, 10727913), (3, 7151942), (6, 3575971), (7, 3065118), (14, 1532559), (19, 1129254), (21, 1021706), (23, 932862), (38, 564627), (42, 510853), (46, 466431), (49, 437874), (57, 376418), (69, 310954), (98, 218937), (114, 188209), (133, 161322), (138, 155477), (147, 145958), (161, 133266), (167, 128478), (266, 80661), (294, 72979), (322, 66633), (334, 64239), (399, 53774), (437, 49098), (483, 44422), (501, 42826), (798, 26887), (874, 24549), (931, 23046), (966, 22211), (1002, 21413), (1127, 19038), (1169, 18354), (1311, 16366), (1862, 11523), (2254, 9519), (2338, 9177), (2622, 8183), (2793, 7682), (3059, 7014), (3173, 6762), (3381, 6346), (3507, 6118), (3841, 5586)]