21805290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18637}}^1$

素因数の和:18663

約数の個数: 48

約数和(自身を含む): 61058088

約数和(自身を除く): 39252798

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 18637, 37274, 55911, 93185, 111822, 167733, 186370, 242281, 279555, 335466, 484562, 559110, 726843, 838665, 1211405, 1453686, 1677330, 2180529, 2422810, 3634215, 4361058, 7268430, 10902645, 21805290]

約数ペア:

[(1, 21805290), (2, 10902645), (3, 7268430), (5, 4361058), (6, 3634215), (9, 2422810), (10, 2180529), (13, 1677330), (15, 1453686), (18, 1211405), (26, 838665), (30, 726843), (39, 559110), (45, 484562), (65, 335466), (78, 279555), (90, 242281), (117, 186370), (130, 167733), (195, 111822), (234, 93185), (390, 55911), (585, 37274), (1170, 18637)]