21478872

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{233}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 35130408

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 138, 167, 184, 233, 276, 334, 466, 501, 552, 668, 699, 932, 1002, 1336, 1398, 1864, 2004, 2796, 3841, 4008, 5359, 5592, 7682, 10718, 11523, 15364, 16077, 21436, 23046, 30728, 32154, 38911, 42872, 46092, 64308, 77822, 92184, 116733, 128616, 155644, 233466, 311288, 466932, 894953, 933864, 1789906, 2684859, 3579812, 5369718, 7159624, 10739436, 21478872]

約数ペア:

[(1, 21478872), (2, 10739436), (3, 7159624), (4, 5369718), (6, 3579812), (8, 2684859), (12, 1789906), (23, 933864), (24, 894953), (46, 466932), (69, 311288), (92, 233466), (138, 155644), (167, 128616), (184, 116733), (233, 92184), (276, 77822), (334, 64308), (466, 46092), (501, 42872), (552, 38911), (668, 32154), (699, 30728), (932, 23046), (1002, 21436), (1336, 16077), (1398, 15364), (1864, 11523), (2004, 10718), (2796, 7682), (3841, 5592), (4008, 5359)]