21026742

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 27633738

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 43, 62, 66, 86, 93, 129, 186, 239, 258, 341, 473, 478, 682, 717, 946, 1023, 1333, 1419, 1434, 2046, 2629, 2666, 2838, 3999, 5258, 7409, 7887, 7998, 10277, 14663, 14818, 15774, 20554, 22227, 29326, 30831, 43989, 44454, 61662, 81499, 87978, 113047, 162998, 226094, 244497, 318587, 339141, 488994, 637174, 678282, 955761, 1911522, 3504457, 7008914, 10513371, 21026742]

約数ペア:

[(1, 21026742), (2, 10513371), (3, 7008914), (6, 3504457), (11, 1911522), (22, 955761), (31, 678282), (33, 637174), (43, 488994), (62, 339141), (66, 318587), (86, 244497), (93, 226094), (129, 162998), (186, 113047), (239, 87978), (258, 81499), (341, 61662), (473, 44454), (478, 43989), (682, 30831), (717, 29326), (946, 22227), (1023, 20554), (1333, 15774), (1419, 14818), (1434, 14663), (2046, 10277), (2629, 7998), (2666, 7887), (2838, 7409), (3999, 5258)]