19820242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{12497}}^1$

素因数の和:12573

約数の個数: 16

約数和(自身を含む): 32544792

約数和(自身を除く): 12724550

約数列:

[1, 2, 13, 26, 61, 122, 793, 1586, 12497, 24994, 162461, 324922, 762317, 1524634, 9910121, 19820242]

約数ペア:

[(1, 19820242), (2, 9910121), (13, 1524634), (26, 762317), (61, 324922), (122, 162461), (793, 24994), (1586, 12497)]