19709645

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1259}}^1$

素因数の和:1396

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 4966195

約数列:

[1, 5, 31, 101, 155, 505, 1259, 3131, 6295, 15655, 39029, 127159, 195145, 635795, 3941929, 19709645]

約数ペア:

[(1, 19709645), (5, 3941929), (31, 635795), (101, 195145), (155, 127159), (505, 39029), (1259, 15655), (3131, 6295)]