21889816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1931}}^1$

素因数の和:2059

約数の個数: 32

約数和(自身を含む): 44629200

約数和(自身を除く): 22739384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 109, 218, 436, 872, 1417, 1931, 2834, 3862, 5668, 7724, 11336, 15448, 25103, 50206, 100412, 200824, 210479, 420958, 841916, 1683832, 2736227, 5472454, 10944908, 21889816]

約数ペア:

[(1, 21889816), (2, 10944908), (4, 5472454), (8, 2736227), (13, 1683832), (26, 841916), (52, 420958), (104, 210479), (109, 200824), (218, 100412), (436, 50206), (872, 25103), (1417, 15448), (1931, 11336), (2834, 7724), (3862, 5668)]