19401772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{8677}}^1$

素因数の和:8737

約数の個数: 24

約数和(自身を含む): 37419536

約数和(自身を除く): 18017764

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 8677, 17354, 34708, 112801, 225602, 373111, 451204, 746222, 1492444, 4850443, 9700886, 19401772]

約数ペア:

[(1, 19401772), (2, 9700886), (4, 4850443), (13, 1492444), (26, 746222), (43, 451204), (52, 373111), (86, 225602), (172, 112801), (559, 34708), (1118, 17354), (2236, 8677)]