21406220948

素因数分解:

$2^2\times 7^2\times {\mathrm{4481}}^1\times {\mathrm{24373}}^1$

素因数の和:28872

約数の個数: 36

約数和(自身を含む): 43588462932

約数和(自身を除く): 22182241984

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 4481, 8962, 17924, 24373, 31367, 48746, 62734, 97492, 125468, 170611, 219569, 341222, 439138, 682444, 878276, 1194277, 2388554, 4777108, 109215413, 218430826, 436861652, 764507891, 1529015782, 3058031564, 5351555237, 10703110474, 21406220948]

約数ペア:

[(1, 21406220948), (2, 10703110474), (4, 5351555237), (7, 3058031564), (14, 1529015782), (28, 764507891), (49, 436861652), (98, 218430826), (196, 109215413), (4481, 4777108), (8962, 2388554), (17924, 1194277), (24373, 878276), (31367, 682444), (48746, 439138), (62734, 341222), (97492, 219569), (125468, 170611)]