21038792

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 43307460

約数和(自身を除く): 22268668

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 113, 136, 148, 226, 296, 452, 629, 904, 1258, 1369, 1921, 2516, 2738, 3842, 4181, 5032, 5476, 7684, 8362, 10952, 15368, 16724, 23273, 33448, 46546, 71077, 93092, 142154, 154697, 186184, 284308, 309394, 568616, 618788, 1237576, 2629849, 5259698, 10519396, 21038792]

約数ペア:

[(1, 21038792), (2, 10519396), (4, 5259698), (8, 2629849), (17, 1237576), (34, 618788), (37, 568616), (68, 309394), (74, 284308), (113, 186184), (136, 154697), (148, 142154), (226, 93092), (296, 71077), (452, 46546), (629, 33448), (904, 23273), (1258, 16724), (1369, 15368), (1921, 10952), (2516, 8362), (2738, 7684), (3842, 5476), (4181, 5032)]