20696415

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{719}}^1$

素因数の和:847

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 14554785

約数列:

[1, 3, 5, 15, 19, 57, 95, 101, 285, 303, 505, 719, 1515, 1919, 2157, 3595, 5757, 9595, 10785, 13661, 28785, 40983, 68305, 72619, 204915, 217857, 363095, 1089285, 1379761, 4139283, 6898805, 20696415]

約数ペア:

[(1, 20696415), (3, 6898805), (5, 4139283), (15, 1379761), (19, 1089285), (57, 363095), (95, 217857), (101, 204915), (285, 72619), (303, 68305), (505, 40983), (719, 28785), (1515, 13661), (1919, 10785), (2157, 9595), (3595, 5757)]