21307248

素因数分解:

$2^4\times 3^2\times {\mathrm{79}}^1\times {\mathrm{1873}}^1$

素因数の和:1966

約数の個数: 60

約数和(自身を含む): 60417760

約数和(自身を除く): 39110512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 79, 144, 158, 237, 316, 474, 632, 711, 948, 1264, 1422, 1873, 1896, 2844, 3746, 3792, 5619, 5688, 7492, 11238, 11376, 14984, 16857, 22476, 29968, 33714, 44952, 67428, 89904, 134856, 147967, 269712, 295934, 443901, 591868, 887802, 1183736, 1331703, 1775604, 2367472, 2663406, 3551208, 5326812, 7102416, 10653624, 21307248]

約数ペア:

[(1, 21307248), (2, 10653624), (3, 7102416), (4, 5326812), (6, 3551208), (8, 2663406), (9, 2367472), (12, 1775604), (16, 1331703), (18, 1183736), (24, 887802), (36, 591868), (48, 443901), (72, 295934), (79, 269712), (144, 147967), (158, 134856), (237, 89904), (316, 67428), (474, 44952), (632, 33714), (711, 29968), (948, 22476), (1264, 16857), (1422, 14984), (1873, 11376), (1896, 11238), (2844, 7492), (3746, 5688), (3792, 5619)]