21647936

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 56

約数和(自身を含む): 46168056

約数和(自身を除く): 24520120

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 101, 136, 197, 202, 272, 394, 404, 544, 788, 808, 1088, 1576, 1616, 1717, 3152, 3232, 3349, 3434, 6304, 6464, 6698, 6868, 12608, 13396, 13736, 19897, 26792, 27472, 39794, 53584, 54944, 79588, 107168, 109888, 159176, 214336, 318352, 338249, 636704, 676498, 1273408, 1352996, 2705992, 5411984, 10823968, 21647936]

約数ペア:

[(1, 21647936), (2, 10823968), (4, 5411984), (8, 2705992), (16, 1352996), (17, 1273408), (32, 676498), (34, 636704), (64, 338249), (68, 318352), (101, 214336), (136, 159176), (197, 109888), (202, 107168), (272, 79588), (394, 54944), (404, 53584), (544, 39794), (788, 27472), (808, 26792), (1088, 19897), (1576, 13736), (1616, 13396), (1717, 12608), (3152, 6868), (3232, 6698), (3349, 6464), (3434, 6304)]