21745516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1447}}^1$

素因数の和:1498

約数の個数: 36

約数和(自身を含む): 43564528

約数和(自身を除く): 21819012

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 289, 442, 578, 884, 1156, 1447, 2894, 3757, 5788, 7514, 15028, 18811, 24599, 37622, 49198, 75244, 98396, 319787, 418183, 639574, 836366, 1279148, 1672732, 5436379, 10872758, 21745516]

約数ペア:

[(1, 21745516), (2, 10872758), (4, 5436379), (13, 1672732), (17, 1279148), (26, 836366), (34, 639574), (52, 418183), (68, 319787), (221, 98396), (289, 75244), (442, 49198), (578, 37622), (884, 24599), (1156, 18811), (1447, 15028), (2894, 7514), (3757, 5788)]