21256270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2011}}^1$

素因数の和:2176

約数の個数: 32

約数和(自身を含む): 44038656

約数和(自身を除く): 22782386

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 151, 302, 755, 1057, 1510, 2011, 2114, 4022, 5285, 10055, 10570, 14077, 20110, 28154, 70385, 140770, 303661, 607322, 1518305, 2125627, 3036610, 4251254, 10628135, 21256270]

約数ペア:

[(1, 21256270), (2, 10628135), (5, 4251254), (7, 3036610), (10, 2125627), (14, 1518305), (35, 607322), (70, 303661), (151, 140770), (302, 70385), (755, 28154), (1057, 20110), (1510, 14077), (2011, 10570), (2114, 10055), (4022, 5285)]