18712796

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{12959}}^1$

素因数の和:13001

約数の個数: 18

約数和(自身を含む): 34564320

約数和(自身を除く): 15851524

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 12959, 25918, 51836, 246221, 492442, 984884, 4678199, 9356398, 18712796]

約数ペア:

[(1, 18712796), (2, 9356398), (4, 4678199), (19, 984884), (38, 492442), (76, 246221), (361, 51836), (722, 25918), (1444, 12959)]