21243728

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{10973}}^1$

素因数の和:11003

約数の個数: 30

約数和(自身を含む): 45245802

約数和(自身を除く): 24002074

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 242, 484, 968, 1936, 10973, 21946, 43892, 87784, 120703, 175568, 241406, 482812, 965624, 1327733, 1931248, 2655466, 5310932, 10621864, 21243728]

約数ペア:

[(1, 21243728), (2, 10621864), (4, 5310932), (8, 2655466), (11, 1931248), (16, 1327733), (22, 965624), (44, 482812), (88, 241406), (121, 175568), (176, 120703), (242, 87784), (484, 43892), (968, 21946), (1936, 10973)]