20013964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{3307}}^1$

素因数の和:3417

約数の個数: 24

約数和(自身を含む): 37512720

約数和(自身を除く): 17498756

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 356, 1513, 3026, 3307, 6052, 6614, 13228, 56219, 112438, 224876, 294323, 588646, 1177292, 5003491, 10006982, 20013964]

約数ペア:

[(1, 20013964), (2, 10006982), (4, 5003491), (17, 1177292), (34, 588646), (68, 294323), (89, 224876), (178, 112438), (356, 56219), (1513, 13228), (3026, 6614), (3307, 6052)]