21595664

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8597}}^1$

素因数の和:8762

約数の個数: 20

約数和(自身を含む): 42113004

約数和(自身を除く): 20517340

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8597, 17194, 34388, 68776, 137552, 1349729, 2699458, 5398916, 10797832, 21595664]

約数ペア:

[(1, 21595664), (2, 10797832), (4, 5398916), (8, 2699458), (16, 1349729), (157, 137552), (314, 68776), (628, 34388), (1256, 17194), (2512, 8597)]