21529014

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 49728000

約数和(自身を除く): 28198986

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 73, 78, 114, 146, 199, 219, 247, 398, 438, 494, 597, 741, 949, 1194, 1387, 1482, 1898, 2587, 2774, 2847, 3781, 4161, 5174, 5694, 7562, 7761, 8322, 11343, 14527, 15522, 18031, 22686, 29054, 36062, 43581, 49153, 54093, 87162, 98306, 108186, 147459, 188851, 276013, 294918, 377702, 552026, 566553, 828039, 1133106, 1656078, 3588169, 7176338, 10764507, 21529014]

約数ペア:

[(1, 21529014), (2, 10764507), (3, 7176338), (6, 3588169), (13, 1656078), (19, 1133106), (26, 828039), (38, 566553), (39, 552026), (57, 377702), (73, 294918), (78, 276013), (114, 188851), (146, 147459), (199, 108186), (219, 98306), (247, 87162), (398, 54093), (438, 49153), (494, 43581), (597, 36062), (741, 29054), (949, 22686), (1194, 18031), (1387, 15522), (1482, 14527), (1898, 11343), (2587, 8322), (2774, 7761), (2847, 7562), (3781, 5694), (4161, 5174)]