21167773160

素因数分解:

$2^3\times 5^1\times {\mathrm{2087}}^1\times {\mathrm{253567}}^1$

素因数の和:255665

約数の個数: 32

約数和(自身を含む): 47650498560

約数和(自身を除く): 26482725400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2087, 4174, 8348, 10435, 16696, 20870, 41740, 83480, 253567, 507134, 1014268, 1267835, 2028536, 2535670, 5071340, 10142680, 529194329, 1058388658, 2116777316, 2645971645, 4233554632, 5291943290, 10583886580, 21167773160]

約数ペア:

[(1, 21167773160), (2, 10583886580), (4, 5291943290), (5, 4233554632), (8, 2645971645), (10, 2116777316), (20, 1058388658), (40, 529194329), (2087, 10142680), (4174, 5071340), (8348, 2535670), (10435, 2028536), (16696, 1267835), (20870, 1014268), (41740, 507134), (83480, 253567)]