19388655

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 41513472

約数和(自身を除く): 22124817

約数列:

[1, 3, 5, 9, 11, 13, 15, 23, 33, 39, 45, 55, 65, 69, 99, 115, 117, 131, 143, 165, 195, 207, 253, 299, 345, 393, 429, 495, 585, 655, 715, 759, 897, 1035, 1179, 1265, 1287, 1441, 1495, 1703, 1965, 2145, 2277, 2691, 3013, 3289, 3795, 4323, 4485, 5109, 5895, 6435, 7205, 8515, 9039, 9867, 11385, 12969, 13455, 15065, 15327, 16445, 18733, 21615, 25545, 27117, 29601, 33143, 39169, 45195, 49335, 56199, 64845, 76635, 93665, 99429, 117507, 135585, 148005, 165715, 168597, 195845, 280995, 298287, 352521, 430859, 497145, 587535, 842985, 1292577, 1491435, 1762605, 2154295, 3877731, 6462885, 19388655]

約数ペア:

[(1, 19388655), (3, 6462885), (5, 3877731), (9, 2154295), (11, 1762605), (13, 1491435), (15, 1292577), (23, 842985), (33, 587535), (39, 497145), (45, 430859), (55, 352521), (65, 298287), (69, 280995), (99, 195845), (115, 168597), (117, 165715), (131, 148005), (143, 135585), (165, 117507), (195, 99429), (207, 93665), (253, 76635), (299, 64845), (345, 56199), (393, 49335), (429, 45195), (495, 39169), (585, 33143), (655, 29601), (715, 27117), (759, 25545), (897, 21615), (1035, 18733), (1179, 16445), (1265, 15327), (1287, 15065), (1441, 13455), (1495, 12969), (1703, 11385), (1965, 9867), (2145, 9039), (2277, 8515), (2691, 7205), (3013, 6435), (3289, 5895), (3795, 5109), (4323, 4485)]