21591108

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7789}}^1$

素因数の和:7817

約数の個数: 72

約数和(自身を含む): 68053440

約数和(自身を除く): 46462332

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7789, 15578, 23367, 31156, 46734, 54523, 70101, 85679, 93468, 109046, 140202, 163569, 171358, 218092, 257037, 280404, 327138, 342716, 490707, 514074, 599753, 654276, 771111, 981414, 1028148, 1199506, 1542222, 1799259, 1962828, 2399012, 3084444, 3598518, 5397777, 7197036, 10795554, 21591108]

約数ペア:

[(1, 21591108), (2, 10795554), (3, 7197036), (4, 5397777), (6, 3598518), (7, 3084444), (9, 2399012), (11, 1962828), (12, 1799259), (14, 1542222), (18, 1199506), (21, 1028148), (22, 981414), (28, 771111), (33, 654276), (36, 599753), (42, 514074), (44, 490707), (63, 342716), (66, 327138), (77, 280404), (84, 257037), (99, 218092), (126, 171358), (132, 163569), (154, 140202), (198, 109046), (231, 93468), (252, 85679), (308, 70101), (396, 54523), (462, 46734), (693, 31156), (924, 23367), (1386, 15578), (2772, 7789)]