19494376

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 43001280

約数和(自身を除く): 23506904

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 83, 88, 136, 157, 166, 187, 314, 332, 374, 628, 664, 748, 913, 1256, 1411, 1496, 1727, 1826, 2669, 2822, 3454, 3652, 5338, 5644, 6908, 7304, 10676, 11288, 13031, 13816, 15521, 21352, 26062, 29359, 31042, 52124, 58718, 62084, 104248, 117436, 124168, 143341, 221527, 234872, 286682, 443054, 573364, 886108, 1146728, 1772216, 2436797, 4873594, 9747188, 19494376]

約数ペア:

[(1, 19494376), (2, 9747188), (4, 4873594), (8, 2436797), (11, 1772216), (17, 1146728), (22, 886108), (34, 573364), (44, 443054), (68, 286682), (83, 234872), (88, 221527), (136, 143341), (157, 124168), (166, 117436), (187, 104248), (314, 62084), (332, 58718), (374, 52124), (628, 31042), (664, 29359), (748, 26062), (913, 21352), (1256, 15521), (1411, 13816), (1496, 13031), (1727, 11288), (1826, 10676), (2669, 7304), (2822, 6908), (3454, 5644), (3652, 5338)]