21520164

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{105491}}^1$

素因数の和:105515

約数の個数: 24

約数和(自身を含む): 53167968

約数和(自身を除く): 31647804

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 105491, 210982, 316473, 421964, 632946, 1265892, 1793347, 3586694, 5380041, 7173388, 10760082, 21520164]

約数ペア:

[(1, 21520164), (2, 10760082), (3, 7173388), (4, 5380041), (6, 3586694), (12, 1793347), (17, 1265892), (34, 632946), (51, 421964), (68, 316473), (102, 210982), (204, 105491)]