20161978485

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1973}}^1\times {\mathrm{61933}}^1$

素因数の和:63925

約数の個数: 32

約数和(自身を含む): 35210222208

約数和(自身を除く): 15048243723

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 1973, 5919, 9865, 21703, 29595, 61933, 65109, 108515, 185799, 309665, 325545, 681263, 928995, 2043789, 3406315, 10218945, 122193809, 366581427, 610969045, 1344131899, 1832907135, 4032395697, 6720659495, 20161978485]

約数ペア:

[(1, 20161978485), (3, 6720659495), (5, 4032395697), (11, 1832907135), (15, 1344131899), (33, 610969045), (55, 366581427), (165, 122193809), (1973, 10218945), (5919, 3406315), (9865, 2043789), (21703, 928995), (29595, 681263), (61933, 325545), (65109, 309665), (108515, 185799)]