13990905

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 25608960

約数和(自身を除く): 11618055

約数列:

[1, 3, 5, 9, 15, 29, 45, 71, 87, 145, 151, 213, 261, 355, 435, 453, 639, 755, 1065, 1305, 1359, 2059, 2265, 3195, 4379, 6177, 6795, 10295, 10721, 13137, 18531, 21895, 30885, 32163, 39411, 53605, 65685, 92655, 96489, 160815, 197055, 310909, 482445, 932727, 1554545, 2798181, 4663635, 13990905]

約数ペア:

[(1, 13990905), (3, 4663635), (5, 2798181), (9, 1554545), (15, 932727), (29, 482445), (45, 310909), (71, 197055), (87, 160815), (145, 96489), (151, 92655), (213, 65685), (261, 53605), (355, 39411), (435, 32163), (453, 30885), (639, 21895), (755, 18531), (1065, 13137), (1305, 10721), (1359, 10295), (2059, 6795), (2265, 6177), (3195, 4379)]