19934145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{523}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 43487808

約数和(自身を除く): 23553663

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 121, 165, 231, 315, 363, 385, 495, 523, 605, 693, 847, 1089, 1155, 1569, 1815, 2541, 2615, 3465, 3661, 4235, 4707, 5445, 5753, 7623, 7845, 10983, 12705, 17259, 18305, 23535, 28765, 32949, 38115, 40271, 51777, 54915, 63283, 86295, 120813, 164745, 189849, 201355, 258885, 316415, 362439, 442981, 569547, 604065, 949245, 1328943, 1812195, 2214905, 2847735, 3986829, 6644715, 19934145]

約数ペア:

[(1, 19934145), (3, 6644715), (5, 3986829), (7, 2847735), (9, 2214905), (11, 1812195), (15, 1328943), (21, 949245), (33, 604065), (35, 569547), (45, 442981), (55, 362439), (63, 316415), (77, 258885), (99, 201355), (105, 189849), (121, 164745), (165, 120813), (231, 86295), (315, 63283), (363, 54915), (385, 51777), (495, 40271), (523, 38115), (605, 32949), (693, 28765), (847, 23535), (1089, 18305), (1155, 17259), (1569, 12705), (1815, 10983), (2541, 7845), (2615, 7623), (3465, 5753), (3661, 5445), (4235, 4707)]