18640197

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1787}}^1$

素因数の和:1873

約数の個数: 24

約数和(自身を含む): 28822560

約数和(自身を除く): 10182363

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 1787, 3477, 5361, 10431, 16083, 33953, 101859, 109007, 305577, 327021, 981063, 2071133, 6213399, 18640197]

約数ペア:

[(1, 18640197), (3, 6213399), (9, 2071133), (19, 981063), (57, 327021), (61, 305577), (171, 109007), (183, 101859), (549, 33953), (1159, 16083), (1787, 10431), (3477, 5361)]