20678344

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 39755520

約数和(自身を除く): 19077176

約数列:

[1, 2, 4, 8, 67, 134, 173, 223, 268, 346, 446, 536, 692, 892, 1384, 1784, 11591, 14941, 23182, 29882, 38579, 46364, 59764, 77158, 92728, 119528, 154316, 308632, 2584793, 5169586, 10339172, 20678344]

約数ペア:

[(1, 20678344), (2, 10339172), (4, 5169586), (8, 2584793), (67, 308632), (134, 154316), (173, 119528), (223, 92728), (268, 77158), (346, 59764), (446, 46364), (536, 38579), (692, 29882), (892, 23182), (1384, 14941), (1784, 11591)]