21384660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32401}}^1$

素因数の和:32424

約数の個数: 48

約数和(自身を含む): 65322432

約数和(自身を除く): 43937772

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32401, 64802, 97203, 129604, 162005, 194406, 324010, 356411, 388812, 486015, 648020, 712822, 972030, 1069233, 1425644, 1782055, 1944060, 2138466, 3564110, 4276932, 5346165, 7128220, 10692330, 21384660]

約数ペア:

[(1, 21384660), (2, 10692330), (3, 7128220), (4, 5346165), (5, 4276932), (6, 3564110), (10, 2138466), (11, 1944060), (12, 1782055), (15, 1425644), (20, 1069233), (22, 972030), (30, 712822), (33, 648020), (44, 486015), (55, 388812), (60, 356411), (66, 324010), (110, 194406), (132, 162005), (165, 129604), (220, 97203), (330, 64802), (660, 32401)]