18231939957

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{881}}^1\times {\mathrm{887}}^1$

素因数の和:1890

約数の個数: 64

約数和(自身を含む): 30677004288

約数和(自身を除く): 12445064331

約数列:

[1, 3, 7, 11, 21, 33, 77, 101, 231, 303, 707, 881, 887, 1111, 2121, 2643, 2661, 3333, 6167, 6209, 7777, 9691, 9757, 18501, 18627, 23331, 29073, 29271, 67837, 68299, 88981, 89587, 203511, 204897, 266943, 268761, 622867, 627109, 781447, 978791, 985457, 1868601, 1881327, 2344341, 2936373, 2956371, 5470129, 6851537, 6898199, 8595917, 16410387, 20554611, 20694597, 25787751, 60171419, 78926147, 180514257, 236778441, 552483029, 868187617, 1657449087, 2604562851, 6077313319, 18231939957]

約数ペア:

[(1, 18231939957), (3, 6077313319), (7, 2604562851), (11, 1657449087), (21, 868187617), (33, 552483029), (77, 236778441), (101, 180514257), (231, 78926147), (303, 60171419), (707, 25787751), (881, 20694597), (887, 20554611), (1111, 16410387), (2121, 8595917), (2643, 6898199), (2661, 6851537), (3333, 5470129), (6167, 2956371), (6209, 2936373), (7777, 2344341), (9691, 1881327), (9757, 1868601), (18501, 985457), (18627, 978791), (23331, 781447), (29073, 627109), (29271, 622867), (67837, 268761), (68299, 266943), (88981, 204897), (89587, 203511)]