31321485

素因数分解:

$3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:697

約数の個数: 56

約数和(自身を含む): 60779544

約数和(自身を除く): 29458059

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 585, 661, 729, 1053, 1215, 1755, 1983, 3159, 3305, 3645, 5265, 5949, 8593, 9477, 9915, 15795, 17847, 25779, 29745, 42965, 47385, 53541, 77337, 89235, 128895, 160623, 232011, 267705, 386685, 481869, 696033, 803115, 1160055, 2088099, 2409345, 3480165, 6264297, 10440495, 31321485]

約数ペア:

[(1, 31321485), (3, 10440495), (5, 6264297), (9, 3480165), (13, 2409345), (15, 2088099), (27, 1160055), (39, 803115), (45, 696033), (65, 481869), (81, 386685), (117, 267705), (135, 232011), (195, 160623), (243, 128895), (351, 89235), (405, 77337), (585, 53541), (661, 47385), (729, 42965), (1053, 29745), (1215, 25779), (1755, 17847), (1983, 15795), (3159, 9915), (3305, 9477), (3645, 8593), (5265, 5949)]