21336020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{62753}}^1$

素因数の和:62779

約数の個数: 24

約数和(自身を含む): 47442024

約数和(自身を除く): 26106004

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 62753, 125506, 251012, 313765, 627530, 1066801, 1255060, 2133602, 4267204, 5334005, 10668010, 21336020]

約数ペア:

[(1, 21336020), (2, 10668010), (4, 5334005), (5, 4267204), (10, 2133602), (17, 1255060), (20, 1066801), (34, 627530), (68, 313765), (85, 251012), (170, 125506), (340, 62753)]