61438221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 107278080

約数和(自身を除く): 45839859

約数列:

[1, 3, 9, 13, 17, 23, 39, 51, 69, 79, 117, 153, 207, 221, 237, 289, 299, 391, 663, 711, 867, 897, 1027, 1173, 1343, 1817, 1989, 2601, 2691, 3081, 3519, 3757, 4029, 5083, 5451, 6647, 9243, 11271, 12087, 15249, 16353, 17459, 19941, 22831, 23621, 30889, 33813, 45747, 52377, 59823, 68493, 70863, 86411, 92667, 157131, 205479, 212589, 259233, 278001, 296803, 401557, 525113, 777699, 890409, 1204671, 1575339, 2671227, 3614013, 4726017, 6826469, 20479407, 61438221]

約数ペア:

[(1, 61438221), (3, 20479407), (9, 6826469), (13, 4726017), (17, 3614013), (23, 2671227), (39, 1575339), (51, 1204671), (69, 890409), (79, 777699), (117, 525113), (153, 401557), (207, 296803), (221, 278001), (237, 259233), (289, 212589), (299, 205479), (391, 157131), (663, 92667), (711, 86411), (867, 70863), (897, 68493), (1027, 59823), (1173, 52377), (1343, 45747), (1817, 33813), (1989, 30889), (2601, 23621), (2691, 22831), (3081, 19941), (3519, 17459), (3757, 16353), (4029, 15249), (5083, 12087), (5451, 11271), (6647, 9243)]