18008109

素因数分解:

$3^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{631}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 30740480

約数和(自身を除く): 12732371

約数列:

[1, 3, 7, 9, 21, 27, 63, 151, 189, 453, 631, 1057, 1359, 1893, 3171, 4077, 4417, 5679, 9513, 13251, 17037, 28539, 39753, 95281, 119259, 285843, 666967, 857529, 2000901, 2572587, 6002703, 18008109]

約数ペア:

[(1, 18008109), (3, 6002703), (7, 2572587), (9, 2000901), (21, 857529), (27, 666967), (63, 285843), (151, 119259), (189, 95281), (453, 39753), (631, 28539), (1057, 17037), (1359, 13251), (1893, 9513), (3171, 5679), (4077, 4417)]