21803656

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{619}}^1$

素因数の和:686

約数の個数: 64

約数和(自身を含む): 50889600

約数和(自身を除く): 29085944

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 37, 56, 68, 74, 119, 136, 148, 238, 259, 296, 476, 518, 619, 629, 952, 1036, 1238, 1258, 2072, 2476, 2516, 4333, 4403, 4952, 5032, 8666, 8806, 10523, 17332, 17612, 21046, 22903, 34664, 35224, 42092, 45806, 73661, 84184, 91612, 147322, 160321, 183224, 294644, 320642, 389351, 589288, 641284, 778702, 1282568, 1557404, 2725457, 3114808, 5450914, 10901828, 21803656]

約数ペア:

[(1, 21803656), (2, 10901828), (4, 5450914), (7, 3114808), (8, 2725457), (14, 1557404), (17, 1282568), (28, 778702), (34, 641284), (37, 589288), (56, 389351), (68, 320642), (74, 294644), (119, 183224), (136, 160321), (148, 147322), (238, 91612), (259, 84184), (296, 73661), (476, 45806), (518, 42092), (619, 35224), (629, 34664), (952, 22903), (1036, 21046), (1238, 17612), (1258, 17332), (2072, 10523), (2476, 8806), (2516, 8666), (4333, 5032), (4403, 4952)]