21516742719

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{1103}}^1$

素因数の和:1458

約数の個数: 80

約数和(自身を含む): 34599324672

約数和(自身を除く): 13082581953

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 111, 207, 283, 333, 621, 849, 851, 999, 1103, 1863, 2547, 2553, 2997, 3309, 6509, 7641, 7659, 9927, 10471, 19527, 22923, 22977, 25369, 29781, 31413, 40811, 58581, 68931, 76107, 89343, 94239, 122433, 175743, 228321, 240833, 282717, 312149, 367299, 527229, 684963, 722499, 848151, 936447, 938653, 1101897, 2054889, 2167497, 2809341, 2815959, 3305691, 6502491, 7179427, 8428023, 8447877, 11549513, 19507473, 21538281, 25284069, 25343631, 34648539, 64614843, 76030893, 103945617, 193844529, 265638799, 311836851, 581533587, 796916397, 935510553, 2390749191, 7172247573, 21516742719]

約数ペア:

[(1, 21516742719), (3, 7172247573), (9, 2390749191), (23, 935510553), (27, 796916397), (37, 581533587), (69, 311836851), (81, 265638799), (111, 193844529), (207, 103945617), (283, 76030893), (333, 64614843), (621, 34648539), (849, 25343631), (851, 25284069), (999, 21538281), (1103, 19507473), (1863, 11549513), (2547, 8447877), (2553, 8428023), (2997, 7179427), (3309, 6502491), (6509, 3305691), (7641, 2815959), (7659, 2809341), (9927, 2167497), (10471, 2054889), (19527, 1101897), (22923, 938653), (22977, 936447), (25369, 848151), (29781, 722499), (31413, 684963), (40811, 527229), (58581, 367299), (68931, 312149), (76107, 282717), (89343, 240833), (94239, 228321), (122433, 175743)]