21722709

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{607}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 29573120

約数和(自身を除く): 7850411

約数列:

[1, 3, 79, 151, 237, 453, 607, 1821, 11929, 35787, 47953, 91657, 143859, 274971, 7240903, 21722709]

約数ペア:

[(1, 21722709), (3, 7240903), (79, 274971), (151, 143859), (237, 91657), (453, 47953), (607, 35787), (1821, 11929)]