19788142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{39107}}^1$

素因数の和:39143

約数の個数: 16

約数和(自身を含む): 33789312

約数和(自身を除く): 14001170

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 39107, 78214, 430177, 860354, 899461, 1798922, 9894071, 19788142]

約数ペア:

[(1, 19788142), (2, 9894071), (11, 1798922), (22, 899461), (23, 860354), (46, 430177), (253, 78214), (506, 39107)]