19888491

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41177}}^1$

素因数の和:41210

約数の個数: 16

約数和(自身を含む): 31624704

約数和(自身を除く): 11736213

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 41177, 123531, 288239, 864717, 947071, 2841213, 6629497, 19888491]

約数ペア:

[(1, 19888491), (3, 6629497), (7, 2841213), (21, 947071), (23, 864717), (69, 288239), (161, 123531), (483, 41177)]