19838845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 26927712

約数和(自身を除く): 7088867

約数列:

[1, 5, 13, 37, 65, 73, 113, 185, 365, 481, 565, 949, 1469, 2405, 2701, 4181, 4745, 7345, 8249, 13505, 20905, 35113, 41245, 54353, 107237, 175565, 271765, 305213, 536185, 1526065, 3967769, 19838845]

約数ペア:

[(1, 19838845), (5, 3967769), (13, 1526065), (37, 536185), (65, 305213), (73, 271765), (113, 175565), (185, 107237), (365, 54353), (481, 41245), (565, 35113), (949, 20905), (1469, 13505), (2405, 8249), (2701, 7345), (4181, 4745)]