19477205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 27060480

約数和(自身を除く): 7583275

約数列:

[1, 5, 11, 23, 55, 89, 115, 173, 253, 445, 865, 979, 1265, 1903, 2047, 3979, 4895, 9515, 10235, 15397, 19895, 22517, 43769, 76985, 112585, 169367, 218845, 354131, 846835, 1770655, 3895441, 19477205]

約数ペア:

[(1, 19477205), (5, 3895441), (11, 1770655), (23, 846835), (55, 354131), (89, 218845), (115, 169367), (173, 112585), (253, 76985), (445, 43769), (865, 22517), (979, 19895), (1265, 15397), (1903, 10235), (2047, 9515), (3979, 4895)]