21323465

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{463}}^1$

素因数の和:680

約数の個数: 16

約数和(自身を含む): 26236416

約数和(自身を除く): 4912951

約数列:

[1, 5, 61, 151, 305, 463, 755, 2315, 9211, 28243, 46055, 69913, 141215, 349565, 4264693, 21323465]

約数ペア:

[(1, 21323465), (5, 4264693), (61, 349565), (151, 141215), (305, 69913), (463, 46055), (755, 28243), (2315, 9211)]