21006152

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{601}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 41935320

約数和(自身を除く): 20929168

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 257, 514, 601, 1028, 1202, 2056, 2404, 4369, 4808, 8738, 10217, 17476, 20434, 34952, 40868, 81736, 154457, 308914, 617828, 1235656, 2625769, 5251538, 10503076, 21006152]

約数ペア:

[(1, 21006152), (2, 10503076), (4, 5251538), (8, 2625769), (17, 1235656), (34, 617828), (68, 308914), (136, 154457), (257, 81736), (514, 40868), (601, 34952), (1028, 20434), (1202, 17476), (2056, 10217), (2404, 8738), (4369, 4808)]