20619225

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2777}}^1$

素因数の和:2807

約数の個数: 48

約数和(自身を含む): 41336640

約数和(自身を除く): 20717415

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2777, 7425, 8331, 13885, 24993, 30547, 41655, 69425, 74979, 91641, 124965, 152735, 208275, 274923, 374895, 458205, 624825, 763675, 824769, 1374615, 1874475, 2291025, 4123845, 6873075, 20619225]

約数ペア:

[(1, 20619225), (3, 6873075), (5, 4123845), (9, 2291025), (11, 1874475), (15, 1374615), (25, 824769), (27, 763675), (33, 624825), (45, 458205), (55, 374895), (75, 274923), (99, 208275), (135, 152735), (165, 124965), (225, 91641), (275, 74979), (297, 69425), (495, 41655), (675, 30547), (825, 24993), (1485, 13885), (2475, 8331), (2777, 7425)]