21561134

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{73}}^2$

素因数の和:189

約数の個数: 36

約数和(自身を含む): 39809304

約数和(自身を除く): 18248170

約数列:

[1, 2, 7, 14, 17, 34, 73, 119, 146, 238, 289, 511, 578, 1022, 1241, 2023, 2482, 4046, 5329, 8687, 10658, 17374, 21097, 37303, 42194, 74606, 90593, 147679, 181186, 295358, 634151, 1268302, 1540081, 3080162, 10780567, 21561134]

約数ペア:

[(1, 21561134), (2, 10780567), (7, 3080162), (14, 1540081), (17, 1268302), (34, 634151), (73, 295358), (119, 181186), (146, 147679), (238, 90593), (289, 74606), (511, 42194), (578, 37303), (1022, 21097), (1241, 17374), (2023, 10658), (2482, 8687), (4046, 5329)]