21536808

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:602

約数の個数: 64

約数和(自身を含む): 56548800

約数和(自身を除く): 35011992

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 43, 82, 86, 123, 129, 164, 172, 246, 258, 328, 344, 492, 509, 516, 984, 1018, 1032, 1527, 1763, 2036, 3054, 3526, 4072, 5289, 6108, 7052, 10578, 12216, 14104, 20869, 21156, 21887, 41738, 42312, 43774, 62607, 65661, 83476, 87548, 125214, 131322, 166952, 175096, 250428, 262644, 500856, 525288, 897367, 1794734, 2692101, 3589468, 5384202, 7178936, 10768404, 21536808]

約数ペア:

[(1, 21536808), (2, 10768404), (3, 7178936), (4, 5384202), (6, 3589468), (8, 2692101), (12, 1794734), (24, 897367), (41, 525288), (43, 500856), (82, 262644), (86, 250428), (123, 175096), (129, 166952), (164, 131322), (172, 125214), (246, 87548), (258, 83476), (328, 65661), (344, 62607), (492, 43774), (509, 42312), (516, 41738), (984, 21887), (1018, 21156), (1032, 20869), (1527, 14104), (1763, 12216), (2036, 10578), (3054, 7052), (3526, 6108), (4072, 5289)]