21163395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2729}}^1$

素因数の和:2795

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16576125

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2585, 2729, 7755, 8187, 13645, 30019, 40935, 90057, 128263, 150095, 384789, 450285, 641315, 1410893, 1923945, 4232679, 7054465, 21163395]

約数ペア:

[(1, 21163395), (3, 7054465), (5, 4232679), (11, 1923945), (15, 1410893), (33, 641315), (47, 450285), (55, 384789), (141, 150095), (165, 128263), (235, 90057), (517, 40935), (705, 30019), (1551, 13645), (2585, 8187), (2729, 7755)]