19879545

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 41171328

約数和(自身を除く): 21291783

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 37, 43, 49, 51, 85, 105, 111, 119, 129, 147, 185, 215, 245, 255, 259, 301, 357, 555, 595, 629, 645, 731, 735, 777, 833, 903, 1295, 1505, 1591, 1785, 1813, 1887, 2107, 2193, 2499, 3145, 3655, 3885, 4165, 4403, 4515, 4773, 5117, 5439, 6321, 7955, 9065, 9435, 10535, 10965, 11137, 12495, 13209, 15351, 22015, 23865, 25585, 27047, 27195, 30821, 31605, 33411, 35819, 55685, 66045, 76755, 77959, 81141, 92463, 107457, 135235, 154105, 167055, 179095, 189329, 233877, 389795, 405705, 462315, 537285, 567987, 946645, 1169385, 1325303, 2839935, 3975909, 6626515, 19879545]

約数ペア:

[(1, 19879545), (3, 6626515), (5, 3975909), (7, 2839935), (15, 1325303), (17, 1169385), (21, 946645), (35, 567987), (37, 537285), (43, 462315), (49, 405705), (51, 389795), (85, 233877), (105, 189329), (111, 179095), (119, 167055), (129, 154105), (147, 135235), (185, 107457), (215, 92463), (245, 81141), (255, 77959), (259, 76755), (301, 66045), (357, 55685), (555, 35819), (595, 33411), (629, 31605), (645, 30821), (731, 27195), (735, 27047), (777, 25585), (833, 23865), (903, 22015), (1295, 15351), (1505, 13209), (1591, 12495), (1785, 11137), (1813, 10965), (1887, 10535), (2107, 9435), (2193, 9065), (2499, 7955), (3145, 6321), (3655, 5439), (3885, 5117), (4165, 4773), (4403, 4515)]