21897810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 65214720

約数和(自身を除く): 43316910

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 73, 90, 99, 101, 110, 135, 146, 165, 198, 202, 219, 270, 297, 303, 330, 365, 438, 495, 505, 594, 606, 657, 730, 803, 909, 990, 1010, 1095, 1111, 1314, 1485, 1515, 1606, 1818, 1971, 2190, 2222, 2409, 2727, 2970, 3030, 3285, 3333, 3942, 4015, 4545, 4818, 5454, 5555, 6570, 6666, 7227, 7373, 8030, 9090, 9855, 9999, 11110, 12045, 13635, 14454, 14746, 16665, 19710, 19998, 21681, 22119, 24090, 27270, 29997, 33330, 36135, 36865, 43362, 44238, 49995, 59994, 66357, 72270, 73730, 81103, 99990, 108405, 110595, 132714, 149985, 162206, 199071, 216810, 221190, 243309, 299970, 331785, 398142, 405515, 486618, 663570, 729927, 811030, 995355, 1216545, 1459854, 1990710, 2189781, 2433090, 3649635, 4379562, 7299270, 10948905, 21897810]

約数ペア:

[(1, 21897810), (2, 10948905), (3, 7299270), (5, 4379562), (6, 3649635), (9, 2433090), (10, 2189781), (11, 1990710), (15, 1459854), (18, 1216545), (22, 995355), (27, 811030), (30, 729927), (33, 663570), (45, 486618), (54, 405515), (55, 398142), (66, 331785), (73, 299970), (90, 243309), (99, 221190), (101, 216810), (110, 199071), (135, 162206), (146, 149985), (165, 132714), (198, 110595), (202, 108405), (219, 99990), (270, 81103), (297, 73730), (303, 72270), (330, 66357), (365, 59994), (438, 49995), (495, 44238), (505, 43362), (594, 36865), (606, 36135), (657, 33330), (730, 29997), (803, 27270), (909, 24090), (990, 22119), (1010, 21681), (1095, 19998), (1111, 19710), (1314, 16665), (1485, 14746), (1515, 14454), (1606, 13635), (1818, 12045), (1971, 11110), (2190, 9999), (2222, 9855), (2409, 9090), (2727, 8030), (2970, 7373), (3030, 7227), (3285, 6666), (3333, 6570), (3942, 5555), (4015, 5454), (4545, 4818)]