21386417445

素因数分解:

$3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{2473}}^1$

素因数の和:2784

約数の個数: 80

約数和(自身を含む): 38882492352

約数和(自身を除く): 17496074907

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 131, 135, 163, 393, 405, 489, 655, 815, 1179, 1467, 1965, 2445, 2473, 3537, 4401, 5895, 7335, 7419, 10611, 12365, 13203, 17685, 21353, 22005, 22257, 37095, 53055, 64059, 66015, 66771, 106765, 111285, 192177, 200313, 320295, 323963, 333855, 403099, 576531, 960885, 971889, 1001565, 1209297, 1619815, 1729593, 2015495, 2882655, 2915667, 3627891, 4859445, 6046485, 8647965, 8747001, 10883673, 14578335, 18139455, 26241003, 32651019, 43735005, 52805969, 54418365, 131205015, 158417907, 163255095, 264029845, 475253721, 792089535, 1425761163, 2376268605, 4277283489, 7128805815, 21386417445]

約数ペア:

[(1, 21386417445), (3, 7128805815), (5, 4277283489), (9, 2376268605), (15, 1425761163), (27, 792089535), (45, 475253721), (81, 264029845), (131, 163255095), (135, 158417907), (163, 131205015), (393, 54418365), (405, 52805969), (489, 43735005), (655, 32651019), (815, 26241003), (1179, 18139455), (1467, 14578335), (1965, 10883673), (2445, 8747001), (2473, 8647965), (3537, 6046485), (4401, 4859445), (5895, 3627891), (7335, 2915667), (7419, 2882655), (10611, 2015495), (12365, 1729593), (13203, 1619815), (17685, 1209297), (21353, 1001565), (22005, 971889), (22257, 960885), (37095, 576531), (53055, 403099), (64059, 333855), (66015, 323963), (66771, 320295), (106765, 200313), (111285, 192177)]