21308004

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{941}}^1$

素因数の和:1005

約数の個数: 72

約数和(自身を含む): 58633848

約数和(自身を除く): 37325844

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 37, 51, 68, 74, 102, 111, 148, 153, 204, 222, 306, 333, 444, 612, 629, 666, 941, 1258, 1332, 1882, 1887, 2516, 2823, 3764, 3774, 5646, 5661, 7548, 8469, 11292, 11322, 15997, 16938, 22644, 31994, 33876, 34817, 47991, 63988, 69634, 95982, 104451, 139268, 143973, 191964, 208902, 287946, 313353, 417804, 575892, 591889, 626706, 1183778, 1253412, 1775667, 2367556, 3551334, 5327001, 7102668, 10654002, 21308004]

約数ペア:

[(1, 21308004), (2, 10654002), (3, 7102668), (4, 5327001), (6, 3551334), (9, 2367556), (12, 1775667), (17, 1253412), (18, 1183778), (34, 626706), (36, 591889), (37, 575892), (51, 417804), (68, 313353), (74, 287946), (102, 208902), (111, 191964), (148, 143973), (153, 139268), (204, 104451), (222, 95982), (306, 69634), (333, 63988), (444, 47991), (612, 34817), (629, 33876), (666, 31994), (941, 22644), (1258, 16938), (1332, 15997), (1882, 11322), (1887, 11292), (2516, 8469), (2823, 7548), (3764, 5661), (3774, 5646)]