21457641448

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{389}}^1\times {\mathrm{66943}}^1$

素因数の和:67441

約数の個数: 32

約数和(自身を含む): 40728729600

約数和(自身を除く): 19271088152

約数列:

[1, 2, 4, 8, 103, 206, 389, 412, 778, 824, 1556, 3112, 40067, 66943, 80134, 133886, 160268, 267772, 320536, 535544, 6895129, 13790258, 26040827, 27580516, 52081654, 55161032, 104163308, 208326616, 2682205181, 5364410362, 10728820724, 21457641448]

約数ペア:

[(1, 21457641448), (2, 10728820724), (4, 5364410362), (8, 2682205181), (103, 208326616), (206, 104163308), (389, 55161032), (412, 52081654), (778, 27580516), (824, 26040827), (1556, 13790258), (3112, 6895129), (40067, 535544), (66943, 320536), (80134, 267772), (133886, 160268)]