20871135

素因数分解:

$3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2917}}^1$

素因数の和:2984

約数の個数: 32

約数和(自身を含む): 37817280

約数和(自身を除く): 16946145

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 135, 159, 265, 477, 795, 1431, 2385, 2917, 7155, 8751, 14585, 26253, 43755, 78759, 131265, 154601, 393795, 463803, 773005, 1391409, 2319015, 4174227, 6957045, 20871135]

約数ペア:

[(1, 20871135), (3, 6957045), (5, 4174227), (9, 2319015), (15, 1391409), (27, 773005), (45, 463803), (53, 393795), (135, 154601), (159, 131265), (265, 78759), (477, 43755), (795, 26253), (1431, 14585), (2385, 8751), (2917, 7155)]