19580289

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 26940480

約数和(自身を除く): 7360191

約数列:

[1, 3, 37, 111, 419, 421, 1257, 1263, 15503, 15577, 46509, 46731, 176399, 529197, 6526763, 19580289]

約数ペア:

[(1, 19580289), (3, 6526763), (37, 529197), (111, 176399), (419, 46731), (421, 46509), (1257, 15577), (1263, 15503)]