21434552

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 43618560

約数和(自身を除く): 22184008

約数列:

[1, 2, 4, 8, 17, 34, 68, 73, 127, 136, 146, 254, 289, 292, 508, 578, 584, 1016, 1156, 1241, 2159, 2312, 2482, 4318, 4964, 8636, 9271, 9928, 17272, 18542, 21097, 36703, 37084, 42194, 73406, 74168, 84388, 146812, 157607, 168776, 293624, 315214, 630428, 1260856, 2679319, 5358638, 10717276, 21434552]

約数ペア:

[(1, 21434552), (2, 10717276), (4, 5358638), (8, 2679319), (17, 1260856), (34, 630428), (68, 315214), (73, 293624), (127, 168776), (136, 157607), (146, 146812), (254, 84388), (289, 74168), (292, 73406), (508, 42194), (578, 37084), (584, 36703), (1016, 21097), (1156, 18542), (1241, 17272), (2159, 9928), (2312, 9271), (2482, 8636), (4318, 4964)]