19350981

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 80

約数和(自身を含む): 35126784

約数和(自身を除く): 15775803

約数列:

[1, 3, 9, 13, 17, 23, 27, 39, 47, 51, 69, 81, 117, 141, 153, 207, 221, 299, 351, 391, 423, 459, 611, 621, 663, 799, 897, 1053, 1081, 1173, 1269, 1377, 1833, 1863, 1989, 2397, 2691, 3243, 3519, 3807, 5083, 5499, 5967, 7191, 8073, 9729, 10387, 10557, 14053, 15249, 16497, 17901, 18377, 21573, 24219, 29187, 31161, 31671, 42159, 45747, 49491, 55131, 64719, 87561, 93483, 126477, 137241, 165393, 238901, 280449, 379431, 411723, 496179, 716703, 841347, 1138293, 1488537, 2150109, 6450327, 19350981]

約数ペア:

[(1, 19350981), (3, 6450327), (9, 2150109), (13, 1488537), (17, 1138293), (23, 841347), (27, 716703), (39, 496179), (47, 411723), (51, 379431), (69, 280449), (81, 238901), (117, 165393), (141, 137241), (153, 126477), (207, 93483), (221, 87561), (299, 64719), (351, 55131), (391, 49491), (423, 45747), (459, 42159), (611, 31671), (621, 31161), (663, 29187), (799, 24219), (897, 21573), (1053, 18377), (1081, 17901), (1173, 16497), (1269, 15249), (1377, 14053), (1833, 10557), (1863, 10387), (1989, 9729), (2397, 8073), (2691, 7191), (3243, 5967), (3519, 5499), (3807, 5083)]