20653844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{8209}}^1$

素因数の和:8267

約数の個数: 24

約数和(自身を含む): 39309480

約数和(自身を除く): 18655636

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 2516, 8209, 16418, 32836, 139553, 279106, 303733, 558212, 607466, 1214932, 5163461, 10326922, 20653844]

約数ペア:

[(1, 20653844), (2, 10326922), (4, 5163461), (17, 1214932), (34, 607466), (37, 558212), (68, 303733), (74, 279106), (148, 139553), (629, 32836), (1258, 16418), (2516, 8209)]