26921385

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 52678080

約数和(自身を除く): 25756695

約数列:

[1, 3, 5, 9, 15, 19, 23, 37, 45, 57, 69, 95, 111, 115, 171, 185, 207, 285, 333, 345, 437, 555, 703, 851, 855, 1035, 1311, 1369, 1665, 2109, 2185, 2553, 3515, 3933, 4107, 4255, 6327, 6555, 6845, 7659, 10545, 12321, 12765, 16169, 19665, 20535, 26011, 31487, 31635, 38295, 48507, 61605, 78033, 80845, 94461, 130055, 145521, 157435, 234099, 242535, 283383, 390165, 472305, 598253, 727605, 1170495, 1416915, 1794759, 2991265, 5384277, 8973795, 26921385]

約数ペア:

[(1, 26921385), (3, 8973795), (5, 5384277), (9, 2991265), (15, 1794759), (19, 1416915), (23, 1170495), (37, 727605), (45, 598253), (57, 472305), (69, 390165), (95, 283383), (111, 242535), (115, 234099), (171, 157435), (185, 145521), (207, 130055), (285, 94461), (333, 80845), (345, 78033), (437, 61605), (555, 48507), (703, 38295), (851, 31635), (855, 31487), (1035, 26011), (1311, 20535), (1369, 19665), (1665, 16169), (2109, 12765), (2185, 12321), (2553, 10545), (3515, 7659), (3933, 6845), (4107, 6555), (4255, 6327)]