16990256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{55889}}^1$

素因数の和:55916

約数の個数: 20

約数和(自身を含む): 34651800

約数和(自身を除く): 17661544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 55889, 111778, 223556, 447112, 894224, 1061891, 2123782, 4247564, 8495128, 16990256]

約数ペア:

[(1, 16990256), (2, 8495128), (4, 4247564), (8, 2123782), (16, 1061891), (19, 894224), (38, 447112), (76, 223556), (152, 111778), (304, 55889)]