19970805

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 34099200

約数和(自身を除く): 14128395

約数列:

[1, 3, 5, 15, 19, 57, 79, 95, 237, 285, 395, 887, 1185, 1501, 2661, 4435, 4503, 7505, 13305, 16853, 22515, 50559, 70073, 84265, 210219, 252795, 350365, 1051095, 1331387, 3994161, 6656935, 19970805]

約数ペア:

[(1, 19970805), (3, 6656935), (5, 3994161), (15, 1331387), (19, 1051095), (57, 350365), (79, 252795), (95, 210219), (237, 84265), (285, 70073), (395, 50559), (887, 22515), (1185, 16853), (1501, 13305), (2661, 7505), (4435, 4503)]