20951964

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 58317168

約数和(自身を除く): 37365204

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 157, 198, 314, 337, 396, 471, 628, 674, 942, 1011, 1348, 1413, 1727, 1884, 2022, 2826, 3033, 3454, 3707, 4044, 5181, 5652, 6066, 6908, 7414, 10362, 11121, 12132, 14828, 15543, 20724, 22242, 31086, 33363, 44484, 52909, 62172, 66726, 105818, 133452, 158727, 211636, 317454, 476181, 581999, 634908, 952362, 1163998, 1745997, 1904724, 2327996, 3491994, 5237991, 6983988, 10475982, 20951964]

約数ペア:

[(1, 20951964), (2, 10475982), (3, 6983988), (4, 5237991), (6, 3491994), (9, 2327996), (11, 1904724), (12, 1745997), (18, 1163998), (22, 952362), (33, 634908), (36, 581999), (44, 476181), (66, 317454), (99, 211636), (132, 158727), (157, 133452), (198, 105818), (314, 66726), (337, 62172), (396, 52909), (471, 44484), (628, 33363), (674, 31086), (942, 22242), (1011, 20724), (1348, 15543), (1413, 14828), (1727, 12132), (1884, 11121), (2022, 10362), (2826, 7414), (3033, 6908), (3454, 6066), (3707, 5652), (4044, 5181)]