7880055687

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{21871}}^1$

素因数の和:21953

約数の個数: 72

約数和(自身を含む): 14262293760

約数和(自身を除く): 6382238073

約数列:

[1, 3, 7, 9, 19, 21, 43, 49, 57, 63, 129, 133, 147, 171, 301, 387, 399, 441, 817, 903, 931, 1197, 2107, 2451, 2709, 2793, 5719, 6321, 7353, 8379, 17157, 18963, 21871, 40033, 51471, 65613, 120099, 153097, 196839, 360297, 415549, 459291, 940453, 1071679, 1246647, 1377873, 2821359, 2908843, 3215037, 3739941, 6583171, 8464077, 8726529, 9645111, 17868607, 19749513, 20361901, 26179587, 46082197, 53605821, 59248539, 61085703, 125080249, 138246591, 160817463, 183257109, 375240747, 414739773, 875561743, 1125722241, 2626685229, 7880055687]

約数ペア:

[(1, 7880055687), (3, 2626685229), (7, 1125722241), (9, 875561743), (19, 414739773), (21, 375240747), (43, 183257109), (49, 160817463), (57, 138246591), (63, 125080249), (129, 61085703), (133, 59248539), (147, 53605821), (171, 46082197), (301, 26179587), (387, 20361901), (399, 19749513), (441, 17868607), (817, 9645111), (903, 8726529), (931, 8464077), (1197, 6583171), (2107, 3739941), (2451, 3215037), (2709, 2908843), (2793, 2821359), (5719, 1377873), (6321, 1246647), (7353, 1071679), (8379, 940453), (17157, 459291), (18963, 415549), (21871, 360297), (40033, 196839), (51471, 153097), (65613, 120099)]