21241194

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 49279104

約数和(自身を除く): 28037910

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 83, 102, 166, 193, 221, 249, 386, 442, 498, 579, 663, 1079, 1158, 1326, 1411, 2158, 2509, 2822, 3237, 3281, 4233, 5018, 6474, 6562, 7527, 8466, 9843, 15054, 16019, 18343, 19686, 32038, 36686, 42653, 48057, 55029, 85306, 96114, 110058, 127959, 208247, 255918, 272323, 416494, 544646, 624741, 816969, 1249482, 1633938, 3540199, 7080398, 10620597, 21241194]

約数ペア:

[(1, 21241194), (2, 10620597), (3, 7080398), (6, 3540199), (13, 1633938), (17, 1249482), (26, 816969), (34, 624741), (39, 544646), (51, 416494), (78, 272323), (83, 255918), (102, 208247), (166, 127959), (193, 110058), (221, 96114), (249, 85306), (386, 55029), (442, 48057), (498, 42653), (579, 36686), (663, 32038), (1079, 19686), (1158, 18343), (1326, 16019), (1411, 15054), (2158, 9843), (2509, 8466), (2822, 7527), (3237, 6562), (3281, 6474), (4233, 5018)]