18971785

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 28016640

約数和(自身を除く): 9044855

約数列:

[1, 5, 7, 19, 35, 47, 95, 133, 235, 329, 607, 665, 893, 1645, 3035, 4249, 4465, 6251, 11533, 21245, 28529, 31255, 57665, 80731, 142645, 199703, 403655, 542051, 998515, 2710255, 3794357, 18971785]

約数ペア:

[(1, 18971785), (5, 3794357), (7, 2710255), (19, 998515), (35, 542051), (47, 403655), (95, 199703), (133, 142645), (235, 80731), (329, 57665), (607, 31255), (665, 28529), (893, 21245), (1645, 11533), (3035, 6251), (4249, 4465)]