213651505

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1\times {\mathrm{2909}}^1$

素因数の和:3348

約数の個数: 16

約数和(自身を含む): 264065040

約数和(自身を除く): 50413535

約数列:

[1, 5, 37, 185, 397, 1985, 2909, 14545, 14689, 73445, 107633, 538165, 1154873, 5774365, 42730301, 213651505]

約数ペア:

[(1, 213651505), (5, 42730301), (37, 5774365), (185, 1154873), (397, 538165), (1985, 107633), (2909, 73445), (14545, 14689)]