21695763184

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{5276207}}^1$

素因数の和:5276472

約数の個数: 20

約数和(自身を含む): 42199111584

約数和(自身を除く): 20503348400

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 5276207, 10552414, 21104828, 42209656, 84419312, 1355985199, 2711970398, 5423940796, 10847881592, 21695763184]

約数ペア:

[(1, 21695763184), (2, 10847881592), (4, 5423940796), (8, 2711970398), (16, 1355985199), (257, 84419312), (514, 42209656), (1028, 21104828), (2056, 10552414), (4112, 5276207)]