1997718807

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{21277}}^1$

素因数の和:21567

約数の個数: 32

約数和(自身を含む): 3235617792

約数和(自身を除く): 1237898985

約数列:

[1, 3, 7, 17, 21, 51, 119, 263, 357, 789, 1841, 4471, 5523, 13413, 21277, 31297, 63831, 93891, 148939, 361709, 446817, 1085127, 2531963, 5595851, 7595889, 16787553, 39170957, 95129467, 117512871, 285388401, 665906269, 1997718807]

約数ペア:

[(1, 1997718807), (3, 665906269), (7, 285388401), (17, 117512871), (21, 95129467), (51, 39170957), (119, 16787553), (263, 7595889), (357, 5595851), (789, 2531963), (1841, 1085127), (4471, 446817), (5523, 361709), (13413, 148939), (21277, 93891), (31297, 63831)]