21778204

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{9371}}^1$

素因数の和:9465

約数の個数: 24

約数和(自身を含む): 44085888

約数和(自身を除く): 22307684

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 581, 1162, 2324, 9371, 18742, 37484, 65597, 131194, 262388, 777793, 1555586, 3111172, 5444551, 10889102, 21778204]

約数ペア:

[(1, 21778204), (2, 10889102), (4, 5444551), (7, 3111172), (14, 1555586), (28, 777793), (83, 262388), (166, 131194), (332, 65597), (581, 37484), (1162, 18742), (2324, 9371)]