19971358

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{11491}}^1$

素因数の和:11583

約数の個数: 16

約数和(自身を含む): 33096960

約数和(自身を除く): 13125602

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 11491, 22982, 126401, 252802, 907789, 1815578, 9985679, 19971358]

約数ペア:

[(1, 19971358), (2, 9985679), (11, 1815578), (22, 907789), (79, 252802), (158, 126401), (869, 22982), (1738, 11491)]