18382287

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 33619968

約数和(自身を除く): 15237681

約数列:

[1, 3, 7, 11, 17, 21, 31, 33, 51, 77, 93, 119, 151, 187, 217, 231, 341, 357, 453, 527, 561, 651, 1023, 1057, 1309, 1581, 1661, 2387, 2567, 3171, 3689, 3927, 4681, 4983, 5797, 7161, 7701, 11067, 11627, 14043, 17391, 17969, 28237, 32767, 34881, 40579, 51491, 53907, 79577, 84711, 98301, 121737, 154473, 197659, 238731, 360437, 557039, 592977, 875347, 1081311, 1671117, 2626041, 6127429, 18382287]

約数ペア:

[(1, 18382287), (3, 6127429), (7, 2626041), (11, 1671117), (17, 1081311), (21, 875347), (31, 592977), (33, 557039), (51, 360437), (77, 238731), (93, 197659), (119, 154473), (151, 121737), (187, 98301), (217, 84711), (231, 79577), (341, 53907), (357, 51491), (453, 40579), (527, 34881), (561, 32767), (651, 28237), (1023, 17969), (1057, 17391), (1309, 14043), (1581, 11627), (1661, 11067), (2387, 7701), (2567, 7161), (3171, 5797), (3689, 4983), (3927, 4681)]