18222555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 16613925

約数列:

[1, 3, 5, 13, 15, 17, 23, 39, 51, 65, 69, 85, 115, 195, 221, 239, 255, 299, 345, 391, 663, 717, 897, 1105, 1173, 1195, 1495, 1955, 3107, 3315, 3585, 4063, 4485, 5083, 5497, 5865, 9321, 12189, 15249, 15535, 16491, 20315, 25415, 27485, 46605, 52819, 60945, 71461, 76245, 82455, 93449, 158457, 214383, 264095, 280347, 357305, 467245, 792285, 1071915, 1214837, 1401735, 3644511, 6074185, 18222555]

約数ペア:

[(1, 18222555), (3, 6074185), (5, 3644511), (13, 1401735), (15, 1214837), (17, 1071915), (23, 792285), (39, 467245), (51, 357305), (65, 280347), (69, 264095), (85, 214383), (115, 158457), (195, 93449), (221, 82455), (239, 76245), (255, 71461), (299, 60945), (345, 52819), (391, 46605), (663, 27485), (717, 25415), (897, 20315), (1105, 16491), (1173, 15535), (1195, 15249), (1495, 12189), (1955, 9321), (3107, 5865), (3315, 5497), (3585, 5083), (4063, 4485)]