21769090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{310987}}^1$

素因数の和:311001

約数の個数: 16

約数和(自身を含む): 44782272

約数和(自身を除く): 23013182

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 310987, 621974, 1554935, 2176909, 3109870, 4353818, 10884545, 21769090]

約数ペア:

[(1, 21769090), (2, 10884545), (5, 4353818), (7, 3109870), (10, 2176909), (14, 1554935), (35, 621974), (70, 310987)]