21363747

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 31048752

約数和(自身を除く): 9685005

約数列:

[1, 3, 17, 41, 51, 123, 289, 601, 697, 867, 1803, 2091, 10217, 11849, 24641, 30651, 35547, 73923, 173689, 418897, 521067, 1256691, 7121249, 21363747]

約数ペア:

[(1, 21363747), (3, 7121249), (17, 1256691), (41, 521067), (51, 418897), (123, 173689), (289, 73923), (601, 35547), (697, 30651), (867, 24641), (1803, 11849), (2091, 10217)]