21301335

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1871}}^1$

素因数の和:1916

約数の個数: 48

約数和(自身を含む): 42052608

約数和(自身を除く): 20751273

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 759, 1035, 1265, 1871, 2277, 3795, 5613, 9355, 11385, 16839, 20581, 28065, 43033, 61743, 84195, 102905, 129099, 185229, 215165, 308715, 387297, 473363, 645495, 926145, 1420089, 1936485, 2366815, 4260267, 7100445, 21301335]

約数ペア:

[(1, 21301335), (3, 7100445), (5, 4260267), (9, 2366815), (11, 1936485), (15, 1420089), (23, 926145), (33, 645495), (45, 473363), (55, 387297), (69, 308715), (99, 215165), (115, 185229), (165, 129099), (207, 102905), (253, 84195), (345, 61743), (495, 43033), (759, 28065), (1035, 20581), (1265, 16839), (1871, 11385), (2277, 9355), (3795, 5613)]