19624215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 34082496

約数和(自身を除く): 14458281

約数列:

[1, 3, 5, 13, 15, 39, 65, 157, 195, 471, 641, 785, 1923, 2041, 2355, 3205, 6123, 8333, 9615, 10205, 24999, 30615, 41665, 100637, 124995, 301911, 503185, 1308281, 1509555, 3924843, 6541405, 19624215]

約数ペア:

[(1, 19624215), (3, 6541405), (5, 3924843), (13, 1509555), (15, 1308281), (39, 503185), (65, 301911), (157, 124995), (195, 100637), (471, 41665), (641, 30615), (785, 24999), (1923, 10205), (2041, 9615), (2355, 8333), (3205, 6123)]