20216504

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{887}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 48591360

約数和(自身を除く): 28374856

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 37, 44, 56, 74, 77, 88, 148, 154, 259, 296, 308, 407, 518, 616, 814, 887, 1036, 1628, 1774, 2072, 2849, 3256, 3548, 5698, 6209, 7096, 9757, 11396, 12418, 19514, 22792, 24836, 32819, 39028, 49672, 65638, 68299, 78056, 131276, 136598, 229733, 262552, 273196, 361009, 459466, 546392, 722018, 918932, 1444036, 1837864, 2527063, 2888072, 5054126, 10108252, 20216504]

約数ペア:

[(1, 20216504), (2, 10108252), (4, 5054126), (7, 2888072), (8, 2527063), (11, 1837864), (14, 1444036), (22, 918932), (28, 722018), (37, 546392), (44, 459466), (56, 361009), (74, 273196), (77, 262552), (88, 229733), (148, 136598), (154, 131276), (259, 78056), (296, 68299), (308, 65638), (407, 49672), (518, 39028), (616, 32819), (814, 24836), (887, 22792), (1036, 19514), (1628, 12418), (1774, 11396), (2072, 9757), (2849, 7096), (3256, 6209), (3548, 5698)]