19539190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7723}}^1$

素因数の和:7764

約数の個数: 32

約数和(自身を含む): 40041216

約数和(自身を除く): 20502026

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 7723, 15446, 38615, 77230, 84953, 169906, 177629, 355258, 424765, 849530, 888145, 1776290, 1953919, 3907838, 9769595, 19539190]

約数ペア:

[(1, 19539190), (2, 9769595), (5, 3907838), (10, 1953919), (11, 1776290), (22, 888145), (23, 849530), (46, 424765), (55, 355258), (110, 177629), (115, 169906), (230, 84953), (253, 77230), (506, 38615), (1265, 15446), (2530, 7723)]