20134485

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1559}}^1$

素因数の和:1618

約数の個数: 48

約数和(自身を含む): 40884480

約数和(自身を除く): 20749995

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 41, 45, 63, 105, 123, 205, 287, 315, 369, 615, 861, 1435, 1559, 1845, 2583, 4305, 4677, 7795, 10913, 12915, 14031, 23385, 32739, 54565, 63919, 70155, 98217, 163695, 191757, 319595, 447433, 491085, 575271, 958785, 1342299, 2237165, 2876355, 4026897, 6711495, 20134485]

約数ペア:

[(1, 20134485), (3, 6711495), (5, 4026897), (7, 2876355), (9, 2237165), (15, 1342299), (21, 958785), (35, 575271), (41, 491085), (45, 447433), (63, 319595), (105, 191757), (123, 163695), (205, 98217), (287, 70155), (315, 63919), (369, 54565), (615, 32739), (861, 23385), (1435, 14031), (1559, 12915), (1845, 10913), (2583, 7795), (4305, 4677)]