21063085

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{647}}^1$

素因数の和:1052

約数の個数: 16

約数和(自身を含む): 26873856

約数和(自身を除く): 5810771

約数列:

[1, 5, 17, 85, 383, 647, 1915, 3235, 6511, 10999, 32555, 54995, 247801, 1239005, 4212617, 21063085]

約数ペア:

[(1, 21063085), (5, 4212617), (17, 1239005), (85, 247801), (383, 54995), (647, 32555), (1915, 10999), (3235, 6511)]