21936376

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 29903624

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 149, 154, 239, 298, 308, 478, 596, 616, 956, 1043, 1192, 1639, 1673, 1912, 2086, 2629, 3278, 3346, 4172, 5258, 6556, 6692, 8344, 10516, 11473, 13112, 13384, 18403, 21032, 22946, 35611, 36806, 45892, 71222, 73612, 91784, 142444, 147224, 249277, 284888, 391721, 498554, 783442, 997108, 1566884, 1994216, 2742047, 3133768, 5484094, 10968188, 21936376]

約数ペア:

[(1, 21936376), (2, 10968188), (4, 5484094), (7, 3133768), (8, 2742047), (11, 1994216), (14, 1566884), (22, 997108), (28, 783442), (44, 498554), (56, 391721), (77, 284888), (88, 249277), (149, 147224), (154, 142444), (239, 91784), (298, 73612), (308, 71222), (478, 45892), (596, 36806), (616, 35611), (956, 22946), (1043, 21032), (1192, 18403), (1639, 13384), (1673, 13112), (1912, 11473), (2086, 10516), (2629, 8344), (3278, 6692), (3346, 6556), (4172, 5258)]