21780126

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{52609}}^1$

素因数の和:52640

約数の個数: 24

約数和(自身を含む): 49242960

約数和(自身を除く): 27462834

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 52609, 105218, 157827, 315654, 473481, 946962, 1210007, 2420014, 3630021, 7260042, 10890063, 21780126]

約数ペア:

[(1, 21780126), (2, 10890063), (3, 7260042), (6, 3630021), (9, 2420014), (18, 1210007), (23, 946962), (46, 473481), (69, 315654), (138, 157827), (207, 105218), (414, 52609)]