209027816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{31981}}^1$

素因数の和:32049

約数の個数: 32

約数和(自身を含む): 422162400

約数和(自身を除く): 213134584

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3268, 6536, 31981, 63962, 127924, 255848, 607639, 1215278, 1375183, 2430556, 2750366, 4861112, 5500732, 11001464, 26128477, 52256954, 104513908, 209027816]

約数ペア:

[(1, 209027816), (2, 104513908), (4, 52256954), (8, 26128477), (19, 11001464), (38, 5500732), (43, 4861112), (76, 2750366), (86, 2430556), (152, 1375183), (172, 1215278), (344, 607639), (817, 255848), (1634, 127924), (3268, 63962), (6536, 31981)]