21374360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3319}}^1$

素因数の和:3360

約数の個数: 64

約数和(自身を含む): 57369600

約数和(自身を除く): 35995240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 3319, 6440, 6638, 13276, 16595, 23233, 26552, 33190, 46466, 66380, 76337, 92932, 116165, 132760, 152674, 185864, 232330, 305348, 381685, 464660, 534359, 610696, 763370, 929320, 1068718, 1526740, 2137436, 2671795, 3053480, 4274872, 5343590, 10687180, 21374360]

約数ペア:

[(1, 21374360), (2, 10687180), (4, 5343590), (5, 4274872), (7, 3053480), (8, 2671795), (10, 2137436), (14, 1526740), (20, 1068718), (23, 929320), (28, 763370), (35, 610696), (40, 534359), (46, 464660), (56, 381685), (70, 305348), (92, 232330), (115, 185864), (140, 152674), (161, 132760), (184, 116165), (230, 92932), (280, 76337), (322, 66380), (460, 46466), (644, 33190), (805, 26552), (920, 23233), (1288, 16595), (1610, 13276), (3220, 6638), (3319, 6440)]