21798225

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5099}}^1$

素因数の和:5134

約数の個数: 36

約数和(自身を含む): 41106000

約数和(自身を除く): 19307775

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 5099, 15297, 25495, 45891, 76485, 96881, 127475, 229455, 290643, 382425, 484405, 871929, 1147275, 1453215, 2422025, 4359645, 7266075, 21798225]

約数ペア:

[(1, 21798225), (3, 7266075), (5, 4359645), (9, 2422025), (15, 1453215), (19, 1147275), (25, 871929), (45, 484405), (57, 382425), (75, 290643), (95, 229455), (171, 127475), (225, 96881), (285, 76485), (475, 45891), (855, 25495), (1425, 15297), (4275, 5099)]