21285434

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{15139}}^1$

素因数の和:15197

約数の個数: 16

約数和(自身を含む): 34519200

約数和(自身を除く): 13233766

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 15139, 30278, 287641, 560143, 575282, 1120286, 10642717, 21285434]

約数ペア:

[(1, 21285434), (2, 10642717), (19, 1120286), (37, 575282), (38, 560143), (74, 287641), (703, 30278), (1406, 15139)]