21116645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16693}}^1$

素因数の和:16732

約数の個数: 16

約数和(自身を含む): 28847232

約数和(自身を除く): 7730587

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16693, 83465, 183623, 383939, 918115, 1919695, 4223329, 21116645]

約数ペア:

[(1, 21116645), (5, 4223329), (11, 1919695), (23, 918115), (55, 383939), (115, 183623), (253, 83465), (1265, 16693)]