20880806401

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1\times {\mathrm{8731}}^1$

素因数の和:9433

約数の個数: 32

約数和(自身を含む): 26370360576

約数和(自身を除く): 5489554175

約数列:

[1, 7, 13, 41, 91, 287, 533, 641, 3731, 4487, 8333, 8731, 26281, 58331, 61117, 113503, 183967, 341653, 357971, 794521, 2391571, 2505797, 4653623, 5596571, 32575361, 39175997, 72755423, 229459411, 509287961, 1606215877, 2982972343, 20880806401]

約数ペア:

[(1, 20880806401), (7, 2982972343), (13, 1606215877), (41, 509287961), (91, 229459411), (287, 72755423), (533, 39175997), (641, 32575361), (3731, 5596571), (4487, 4653623), (8333, 2505797), (8731, 2391571), (26281, 794521), (58331, 357971), (61117, 341653), (113503, 183967)]