20159139

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 37094400

約数和(自身を除く): 16935261

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 137, 143, 147, 231, 273, 343, 411, 429, 539, 637, 959, 1001, 1029, 1507, 1617, 1781, 1911, 2877, 3003, 3773, 4459, 4521, 5343, 6713, 7007, 10549, 11319, 12467, 13377, 19591, 20139, 21021, 31647, 37401, 46991, 49049, 58773, 73843, 87269, 137137, 140973, 147147, 221529, 261807, 411411, 516901, 610883, 959959, 1550703, 1832649, 2879877, 6719713, 20159139]

約数ペア:

[(1, 20159139), (3, 6719713), (7, 2879877), (11, 1832649), (13, 1550703), (21, 959959), (33, 610883), (39, 516901), (49, 411411), (77, 261807), (91, 221529), (137, 147147), (143, 140973), (147, 137137), (231, 87269), (273, 73843), (343, 58773), (411, 49049), (429, 46991), (539, 37401), (637, 31647), (959, 21021), (1001, 20139), (1029, 19591), (1507, 13377), (1617, 12467), (1781, 11319), (1911, 10549), (2877, 7007), (3003, 6713), (3773, 5343), (4459, 4521)]