21449580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1237}}^1$

素因数の和:1283

約数の個数: 72

約数和(自身を含む): 63851088

約数和(自身を除く): 42401508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 289, 340, 510, 578, 867, 1020, 1156, 1237, 1445, 1734, 2474, 2890, 3468, 3711, 4335, 4948, 5780, 6185, 7422, 8670, 12370, 14844, 17340, 18555, 21029, 24740, 37110, 42058, 63087, 74220, 84116, 105145, 126174, 210290, 252348, 315435, 357493, 420580, 630870, 714986, 1072479, 1261740, 1429972, 1787465, 2144958, 3574930, 4289916, 5362395, 7149860, 10724790, 21449580]

約数ペア:

[(1, 21449580), (2, 10724790), (3, 7149860), (4, 5362395), (5, 4289916), (6, 3574930), (10, 2144958), (12, 1787465), (15, 1429972), (17, 1261740), (20, 1072479), (30, 714986), (34, 630870), (51, 420580), (60, 357493), (68, 315435), (85, 252348), (102, 210290), (170, 126174), (204, 105145), (255, 84116), (289, 74220), (340, 63087), (510, 42058), (578, 37110), (867, 24740), (1020, 21029), (1156, 18555), (1237, 17340), (1445, 14844), (1734, 12370), (2474, 8670), (2890, 7422), (3468, 6185), (3711, 5780), (4335, 4948)]