21563826

素因数分解:

$2^1\times 3^1\times {\mathrm{389}}^1\times {\mathrm{9239}}^1$

素因数の和:9633

約数の個数: 16

約数和(自身を含む): 43243200

約数和(自身を除く): 21679374

約数列:

[1, 2, 3, 6, 389, 778, 1167, 2334, 9239, 18478, 27717, 55434, 3593971, 7187942, 10781913, 21563826]

約数ペア:

[(1, 21563826), (2, 10781913), (3, 7187942), (6, 3593971), (389, 55434), (778, 27717), (1167, 18478), (2334, 9239)]