20161987184

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{4903207}}^1$

素因数の和:4903472

約数の個数: 20

約数和(自身を含む): 39215857584

約数和(自身を除く): 19053870400

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 4903207, 9806414, 19612828, 39225656, 78451312, 1260124199, 2520248398, 5040496796, 10080993592, 20161987184]

約数ペア:

[(1, 20161987184), (2, 10080993592), (4, 5040496796), (8, 2520248398), (16, 1260124199), (257, 78451312), (514, 39225656), (1028, 19612828), (2056, 9806414), (4112, 4903207)]