21902847

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{971}}^1$

素因数の和:1150

約数の個数: 16

約数和(自身を含む): 29922048

約数和(自身を除く): 8019201

約数列:

[1, 3, 73, 103, 219, 309, 971, 2913, 7519, 22557, 70883, 100013, 212649, 300039, 7300949, 21902847]

約数ペア:

[(1, 21902847), (3, 7300949), (73, 300039), (103, 212649), (219, 100013), (309, 70883), (971, 22557), (2913, 7519)]