16401855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 28055808

約数和(自身を除く): 11653953

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 491, 655, 1473, 1965, 2227, 2455, 6681, 7365, 8347, 11135, 25041, 33405, 41735, 64321, 125205, 192963, 321605, 964815, 1093457, 3280371, 5467285, 16401855]

約数ペア:

[(1, 16401855), (3, 5467285), (5, 3280371), (15, 1093457), (17, 964815), (51, 321605), (85, 192963), (131, 125205), (255, 64321), (393, 41735), (491, 33405), (655, 25041), (1473, 11135), (1965, 8347), (2227, 7365), (2455, 6681)]