21365406

素因数分解:

$2^1\times 3^2\times {\mathrm{557}}^1\times {\mathrm{2131}}^1$

素因数の和:2696

約数の個数: 24

約数和(自身を含む): 46396584

約数和(自身を除く): 25031178

約数列:

[1, 2, 3, 6, 9, 18, 557, 1114, 1671, 2131, 3342, 4262, 5013, 6393, 10026, 12786, 19179, 38358, 1186967, 2373934, 3560901, 7121802, 10682703, 21365406]

約数ペア:

[(1, 21365406), (2, 10682703), (3, 7121802), (6, 3560901), (9, 2373934), (18, 1186967), (557, 38358), (1114, 19179), (1671, 12786), (2131, 10026), (3342, 6393), (4262, 5013)]