18557205

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 32918400

約数和(自身を除く): 14361195

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 149, 285, 345, 361, 437, 447, 745, 1083, 1311, 1805, 2185, 2235, 2831, 3427, 5415, 6555, 8303, 8493, 10281, 14155, 17135, 24909, 41515, 42465, 51405, 53789, 65113, 124545, 161367, 195339, 268945, 325565, 806835, 976695, 1237147, 3711441, 6185735, 18557205]

約数ペア:

[(1, 18557205), (3, 6185735), (5, 3711441), (15, 1237147), (19, 976695), (23, 806835), (57, 325565), (69, 268945), (95, 195339), (115, 161367), (149, 124545), (285, 65113), (345, 53789), (361, 51405), (437, 42465), (447, 41515), (745, 24909), (1083, 17135), (1311, 14155), (1805, 10281), (2185, 8493), (2235, 8303), (2831, 6555), (3427, 5415)]