21862305

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2347}}^1$

素因数の和:2387

約数の個数: 40

約数和(自身を含む): 40911552

約数和(自身を除く): 19049247

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 2347, 3105, 7041, 9315, 11735, 21123, 35205, 53981, 63369, 105615, 161943, 190107, 269905, 316845, 485829, 809715, 950535, 1457487, 2429145, 4372461, 7287435, 21862305]

約数ペア:

[(1, 21862305), (3, 7287435), (5, 4372461), (9, 2429145), (15, 1457487), (23, 950535), (27, 809715), (45, 485829), (69, 316845), (81, 269905), (115, 190107), (135, 161943), (207, 105615), (345, 63369), (405, 53981), (621, 35205), (1035, 21123), (1863, 11735), (2347, 9315), (3105, 7041)]