21379120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38177}}^1$

素因数の和:38197

約数の個数: 40

約数和(自身を含む): 56808864

約数和(自身を除く): 35429744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38177, 76354, 152708, 190885, 267239, 305416, 381770, 534478, 610832, 763540, 1068956, 1336195, 1527080, 2137912, 2672390, 3054160, 4275824, 5344780, 10689560, 21379120]

約数ペア:

[(1, 21379120), (2, 10689560), (4, 5344780), (5, 4275824), (7, 3054160), (8, 2672390), (10, 2137912), (14, 1527080), (16, 1336195), (20, 1068956), (28, 763540), (35, 610832), (40, 534478), (56, 381770), (70, 305416), (80, 267239), (112, 190885), (140, 152708), (280, 76354), (560, 38177)]