19998275516

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{683}}^1\times {\mathrm{430589}}^1$

素因数の和:431293

約数の個数: 24

約数和(自身を含む): 37109968560

約数和(自身を除く): 17111693044

約数列:

[1, 2, 4, 17, 34, 68, 683, 1366, 2732, 11611, 23222, 46444, 430589, 861178, 1722356, 7320013, 14640026, 29280052, 294092287, 588184574, 1176369148, 4999568879, 9999137758, 19998275516]

約数ペア:

[(1, 19998275516), (2, 9999137758), (4, 4999568879), (17, 1176369148), (34, 588184574), (68, 294092287), (683, 29280052), (1366, 14640026), (2732, 7320013), (11611, 1722356), (23222, 861178), (46444, 430589)]