21712604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1187}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 40415760

約数和(自身を除く): 18703156

約数列:

[1, 2, 4, 17, 34, 68, 269, 538, 1076, 1187, 2374, 4573, 4748, 9146, 18292, 20179, 40358, 80716, 319303, 638606, 1277212, 5428151, 10856302, 21712604]

約数ペア:

[(1, 21712604), (2, 10856302), (4, 5428151), (17, 1277212), (34, 638606), (68, 319303), (269, 80716), (538, 40358), (1076, 20179), (1187, 18292), (2374, 9146), (4573, 4748)]