21356272

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6151}}^1$

素因数の和:6197

約数の個数: 40

約数和(自身を含む): 48822272

約数和(自身を除く): 27466000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6151, 12302, 24604, 43057, 49208, 86114, 98416, 172228, 190681, 344456, 381362, 688912, 762724, 1334767, 1525448, 2669534, 3050896, 5339068, 10678136, 21356272]

約数ペア:

[(1, 21356272), (2, 10678136), (4, 5339068), (7, 3050896), (8, 2669534), (14, 1525448), (16, 1334767), (28, 762724), (31, 688912), (56, 381362), (62, 344456), (112, 190681), (124, 172228), (217, 98416), (248, 86114), (434, 49208), (496, 43057), (868, 24604), (1736, 12302), (3472, 6151)]