21298690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13229}}^1$

素因数の和:13266

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 24424190

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 13229, 26458, 66145, 92603, 132290, 185206, 304267, 463015, 608534, 926030, 1521335, 2129869, 3042670, 4259738, 10649345, 21298690]

約数ペア:

[(1, 21298690), (2, 10649345), (5, 4259738), (7, 3042670), (10, 2129869), (14, 1521335), (23, 926030), (35, 608534), (46, 463015), (70, 304267), (115, 185206), (161, 132290), (230, 92603), (322, 66145), (805, 26458), (1610, 13229)]