20921625179

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{41077}}^1$

素因数の和:41319

約数の個数: 32

約数和(自身を含む): 26776283520

約数和(自身を除く): 5854658341

約数列:

[1, 7, 13, 29, 91, 193, 203, 377, 1351, 2509, 2639, 5597, 17563, 39179, 41077, 72761, 287539, 509327, 534001, 1191233, 3738007, 7927861, 8338631, 15486029, 55495027, 103062193, 108402203, 229907969, 721435351, 1609355783, 2988803597, 20921625179]

約数ペア:

[(1, 20921625179), (7, 2988803597), (13, 1609355783), (29, 721435351), (91, 229907969), (193, 108402203), (203, 103062193), (377, 55495027), (1351, 15486029), (2509, 8338631), (2639, 7927861), (5597, 3738007), (17563, 1191233), (39179, 534001), (41077, 509327), (72761, 287539)]