21443265

素因数分解:

$3^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{823}}^1$

素因数の和:1030

約数の個数: 32

約数和(自身を含む): 38365440

約数和(自身を除く): 16922175

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 193, 579, 823, 965, 1737, 2469, 2895, 4115, 5211, 7407, 8685, 12345, 22221, 26055, 37035, 111105, 158839, 476517, 794195, 1429551, 2382585, 4288653, 7147755, 21443265]

約数ペア:

[(1, 21443265), (3, 7147755), (5, 4288653), (9, 2382585), (15, 1429551), (27, 794195), (45, 476517), (135, 158839), (193, 111105), (579, 37035), (823, 26055), (965, 22221), (1737, 12345), (2469, 8685), (2895, 7407), (4115, 5211)]