21605014

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{1117}}^1$

素因数の和:1647

約数の個数: 16

約数和(自身を含む): 34210800

約数和(自身を除く): 12605786

約数列:

[1, 2, 19, 38, 509, 1018, 1117, 2234, 9671, 19342, 21223, 42446, 568553, 1137106, 10802507, 21605014]

約数ペア:

[(1, 21605014), (2, 10802507), (19, 1137106), (38, 568553), (509, 42446), (1018, 21223), (1117, 19342), (2234, 9671)]