21214248

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{751}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 58475520

約数和(自身を除く): 37261272

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 107, 132, 214, 264, 321, 428, 642, 751, 856, 1177, 1284, 1502, 2253, 2354, 2568, 3004, 3531, 4506, 4708, 6008, 7062, 8261, 9012, 9416, 14124, 16522, 18024, 24783, 28248, 33044, 49566, 66088, 80357, 99132, 160714, 198264, 241071, 321428, 482142, 642856, 883927, 964284, 1767854, 1928568, 2651781, 3535708, 5303562, 7071416, 10607124, 21214248]

約数ペア:

[(1, 21214248), (2, 10607124), (3, 7071416), (4, 5303562), (6, 3535708), (8, 2651781), (11, 1928568), (12, 1767854), (22, 964284), (24, 883927), (33, 642856), (44, 482142), (66, 321428), (88, 241071), (107, 198264), (132, 160714), (214, 99132), (264, 80357), (321, 66088), (428, 49566), (642, 33044), (751, 28248), (856, 24783), (1177, 18024), (1284, 16522), (1502, 14124), (2253, 9416), (2354, 9012), (2568, 8261), (3004, 7062), (3531, 6008), (4506, 4708)]