19195418

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12289}}^1$

素因数の和:12373

約数の個数: 16

約数和(自身を含む): 31855680

約数和(自身を除く): 12660262

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12289, 24578, 135179, 270358, 872519, 1745038, 9597709, 19195418]

約数ペア:

[(1, 19195418), (2, 9597709), (11, 1745038), (22, 872519), (71, 270358), (142, 135179), (781, 24578), (1562, 12289)]