20091318

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1439}}^1$

素因数の和:1636

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 23454282

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 179, 358, 537, 1074, 1439, 2327, 2878, 4317, 4654, 6981, 8634, 13962, 18707, 37414, 56121, 112242, 257581, 515162, 772743, 1545486, 3348553, 6697106, 10045659, 20091318]

約数ペア:

[(1, 20091318), (2, 10045659), (3, 6697106), (6, 3348553), (13, 1545486), (26, 772743), (39, 515162), (78, 257581), (179, 112242), (358, 56121), (537, 37414), (1074, 18707), (1439, 13962), (2327, 8634), (2878, 6981), (4317, 4654)]