15820623

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 29675520

約数和(自身を除く): 13854897

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 47, 63, 91, 117, 137, 141, 189, 273, 329, 351, 411, 423, 611, 819, 959, 987, 1233, 1269, 1781, 1833, 2457, 2877, 2961, 3699, 4277, 5343, 5499, 6439, 8631, 8883, 12467, 12831, 16029, 16497, 19317, 25893, 37401, 38493, 45073, 48087, 57951, 83707, 112203, 115479, 135219, 173853, 251121, 336609, 405657, 585949, 753363, 1216971, 1757847, 2260089, 5273541, 15820623]

約数ペア:

[(1, 15820623), (3, 5273541), (7, 2260089), (9, 1757847), (13, 1216971), (21, 753363), (27, 585949), (39, 405657), (47, 336609), (63, 251121), (91, 173853), (117, 135219), (137, 115479), (141, 112203), (189, 83707), (273, 57951), (329, 48087), (351, 45073), (411, 38493), (423, 37401), (611, 25893), (819, 19317), (959, 16497), (987, 16029), (1233, 12831), (1269, 12467), (1781, 8883), (1833, 8631), (2457, 6439), (2877, 5499), (2961, 5343), (3699, 4277)]