212431023

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 375740352

約数和(自身を除く): 163309329

約数列:

[1, 3, 7, 9, 21, 37, 47, 49, 63, 111, 141, 147, 259, 277, 329, 333, 423, 441, 777, 831, 987, 1739, 1813, 1939, 2303, 2331, 2493, 2961, 5217, 5439, 5817, 6909, 10249, 12173, 13019, 13573, 15651, 16317, 17451, 20727, 30747, 36519, 39057, 40719, 71743, 85211, 91133, 92241, 109557, 117171, 122157, 215229, 255633, 273399, 481703, 502201, 637931, 645687, 766899, 820197, 1445109, 1506603, 1913793, 3371921, 4335327, 4519809, 5741379, 10115763, 23603447, 30347289, 70810341, 212431023]

約数ペア:

[(1, 212431023), (3, 70810341), (7, 30347289), (9, 23603447), (21, 10115763), (37, 5741379), (47, 4519809), (49, 4335327), (63, 3371921), (111, 1913793), (141, 1506603), (147, 1445109), (259, 820197), (277, 766899), (329, 645687), (333, 637931), (423, 502201), (441, 481703), (777, 273399), (831, 255633), (987, 215229), (1739, 122157), (1813, 117171), (1939, 109557), (2303, 92241), (2331, 91133), (2493, 85211), (2961, 71743), (5217, 40719), (5439, 39057), (5817, 36519), (6909, 30747), (10249, 20727), (12173, 17451), (13019, 16317), (13573, 15651)]