31138866

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^2$

素因数の和:105

約数の個数: 108

約数和(自身を含む): 81321786

約数和(自身を除く): 50182920

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 22, 29, 33, 34, 51, 58, 66, 87, 99, 102, 121, 153, 174, 187, 198, 242, 261, 306, 319, 363, 374, 493, 522, 561, 638, 726, 841, 957, 986, 1089, 1122, 1479, 1682, 1683, 1914, 2057, 2178, 2523, 2871, 2958, 3366, 3509, 4114, 4437, 5046, 5423, 5742, 6171, 7018, 7569, 8874, 9251, 10527, 10846, 12342, 14297, 15138, 16269, 18502, 18513, 21054, 27753, 28594, 31581, 32538, 37026, 42891, 48807, 55506, 59653, 63162, 83259, 85782, 97614, 101761, 119306, 128673, 157267, 166518, 178959, 203522, 257346, 305283, 314534, 357918, 471801, 536877, 610566, 915849, 943602, 1073754, 1415403, 1729937, 1831698, 2830806, 3459874, 5189811, 10379622, 15569433, 31138866]

約数ペア:

[(1, 31138866), (2, 15569433), (3, 10379622), (6, 5189811), (9, 3459874), (11, 2830806), (17, 1831698), (18, 1729937), (22, 1415403), (29, 1073754), (33, 943602), (34, 915849), (51, 610566), (58, 536877), (66, 471801), (87, 357918), (99, 314534), (102, 305283), (121, 257346), (153, 203522), (174, 178959), (187, 166518), (198, 157267), (242, 128673), (261, 119306), (306, 101761), (319, 97614), (363, 85782), (374, 83259), (493, 63162), (522, 59653), (561, 55506), (638, 48807), (726, 42891), (841, 37026), (957, 32538), (986, 31581), (1089, 28594), (1122, 27753), (1479, 21054), (1682, 18513), (1683, 18502), (1914, 16269), (2057, 15138), (2178, 14297), (2523, 12342), (2871, 10846), (2958, 10527), (3366, 9251), (3509, 8874), (4114, 7569), (4437, 7018), (5046, 6171), (5423, 5742)]