21748368

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 59121216

約数和(自身を除く): 37372848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 43, 48, 82, 86, 123, 129, 164, 172, 246, 257, 258, 328, 344, 492, 514, 516, 656, 688, 771, 984, 1028, 1032, 1542, 1763, 1968, 2056, 2064, 3084, 3526, 4112, 5289, 6168, 7052, 10537, 10578, 11051, 12336, 14104, 21074, 21156, 22102, 28208, 31611, 33153, 42148, 42312, 44204, 63222, 66306, 84296, 84624, 88408, 126444, 132612, 168592, 176816, 252888, 265224, 453091, 505776, 530448, 906182, 1359273, 1812364, 2718546, 3624728, 5437092, 7249456, 10874184, 21748368]

約数ペア:

[(1, 21748368), (2, 10874184), (3, 7249456), (4, 5437092), (6, 3624728), (8, 2718546), (12, 1812364), (16, 1359273), (24, 906182), (41, 530448), (43, 505776), (48, 453091), (82, 265224), (86, 252888), (123, 176816), (129, 168592), (164, 132612), (172, 126444), (246, 88408), (257, 84624), (258, 84296), (328, 66306), (344, 63222), (492, 44204), (514, 42312), (516, 42148), (656, 33153), (688, 31611), (771, 28208), (984, 22102), (1028, 21156), (1032, 21074), (1542, 14104), (1763, 12336), (1968, 11051), (2056, 10578), (2064, 10537), (3084, 7052), (3526, 6168), (4112, 5289)]