21254896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6011}}^1$

素因数の和:6049

約数の個数: 40

約数和(自身を含む): 46965744

約数和(自身を除く): 25710848

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6011, 12022, 24044, 48088, 78143, 96176, 102187, 156286, 204374, 312572, 408748, 625144, 817496, 1250288, 1328431, 1634992, 2656862, 5313724, 10627448, 21254896]

約数ペア:

[(1, 21254896), (2, 10627448), (4, 5313724), (8, 2656862), (13, 1634992), (16, 1328431), (17, 1250288), (26, 817496), (34, 625144), (52, 408748), (68, 312572), (104, 204374), (136, 156286), (208, 102187), (221, 96176), (272, 78143), (442, 48088), (884, 24044), (1768, 12022), (3536, 6011)]