21288059685

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{152063}}^1$

素因数の和:152155

約数の個数: 64

約数和(自身を含む): 40728821760

約数和(自身を除く): 19440762075

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 61, 85, 135, 153, 183, 255, 305, 459, 549, 765, 915, 1037, 1647, 2295, 2745, 3111, 5185, 8235, 9333, 15555, 27999, 46665, 139995, 152063, 456189, 760315, 1368567, 2280945, 2585071, 4105701, 6842835, 7755213, 9275843, 12925355, 20528505, 23265639, 27827529, 38776065, 46379215, 69796917, 83482587, 116328195, 139137645, 157689331, 250447761, 348984585, 417412935, 473067993, 788446655, 1252238805, 1419203979, 2365339965, 4257611937, 7096019895, 21288059685]

約数ペア:

[(1, 21288059685), (3, 7096019895), (5, 4257611937), (9, 2365339965), (15, 1419203979), (17, 1252238805), (27, 788446655), (45, 473067993), (51, 417412935), (61, 348984585), (85, 250447761), (135, 157689331), (153, 139137645), (183, 116328195), (255, 83482587), (305, 69796917), (459, 46379215), (549, 38776065), (765, 27827529), (915, 23265639), (1037, 20528505), (1647, 12925355), (2295, 9275843), (2745, 7755213), (3111, 6842835), (5185, 4105701), (8235, 2585071), (9333, 2280945), (15555, 1368567), (27999, 760315), (46665, 456189), (139995, 152063)]