19890045

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{271}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 39716352

約数和(自身を除く): 19826307

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 233, 271, 315, 699, 813, 1165, 1355, 1631, 1897, 2097, 2439, 3495, 4065, 4893, 5691, 8155, 9485, 10485, 12195, 14679, 17073, 24465, 28455, 63143, 73395, 85365, 189429, 315715, 442001, 568287, 947145, 1326003, 2210005, 2841435, 3978009, 6630015, 19890045]

約数ペア:

[(1, 19890045), (3, 6630015), (5, 3978009), (7, 2841435), (9, 2210005), (15, 1326003), (21, 947145), (35, 568287), (45, 442001), (63, 315715), (105, 189429), (233, 85365), (271, 73395), (315, 63143), (699, 28455), (813, 24465), (1165, 17073), (1355, 14679), (1631, 12195), (1897, 10485), (2097, 9485), (2439, 8155), (3495, 5691), (4065, 4893)]