19408418

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4409}}^1$

素因数の和:4513

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 11073502

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4409, 8818, 136679, 273358, 313039, 626078, 9704209, 19408418]

約数ペア:

[(1, 19408418), (2, 9704209), (31, 626078), (62, 313039), (71, 273358), (142, 136679), (2201, 8818), (4402, 4409)]