21858747

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{619}}^1$

素因数の和:850

約数の個数: 16

約数和(自身を含む): 29760000

約数和(自身を除く): 7901253

約数列:

[1, 3, 79, 149, 237, 447, 619, 1857, 11771, 35313, 48901, 92231, 146703, 276693, 7286249, 21858747]

約数ペア:

[(1, 21858747), (3, 7286249), (79, 276693), (149, 146703), (237, 92231), (447, 48901), (619, 35313), (1857, 11771)]