211306354

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 392970240

約数和(自身を除く): 181663886

約数列:

[1, 2, 7, 14, 29, 31, 58, 62, 103, 163, 203, 206, 217, 326, 406, 434, 721, 899, 1141, 1442, 1798, 2282, 2987, 3193, 4727, 5053, 5974, 6293, 6386, 9454, 10106, 12586, 16789, 20909, 22351, 33089, 33578, 35371, 41818, 44702, 66178, 70742, 92597, 117523, 146537, 185194, 235046, 293074, 486881, 520459, 648179, 973762, 1025759, 1040918, 1296358, 2051518, 3408167, 3643213, 6816334, 7286426, 15093311, 30186622, 105653177, 211306354]

約数ペア:

[(1, 211306354), (2, 105653177), (7, 30186622), (14, 15093311), (29, 7286426), (31, 6816334), (58, 3643213), (62, 3408167), (103, 2051518), (163, 1296358), (203, 1040918), (206, 1025759), (217, 973762), (326, 648179), (406, 520459), (434, 486881), (721, 293074), (899, 235046), (1141, 185194), (1442, 146537), (1798, 117523), (2282, 92597), (2987, 70742), (3193, 66178), (4727, 44702), (5053, 41818), (5974, 35371), (6293, 33578), (6386, 33089), (9454, 22351), (10106, 20909), (12586, 16789)]