21022956

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{5261}}^1$

素因数の和:5311

約数の個数: 48

約数和(自身を含む): 55987680

約数和(自身を除く): 34964724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 5261, 10522, 15783, 21044, 31566, 47349, 63132, 94698, 142047, 189396, 194657, 284094, 389314, 568188, 583971, 778628, 1167942, 1751913, 2335884, 3503826, 5255739, 7007652, 10511478, 21022956]

約数ペア:

[(1, 21022956), (2, 10511478), (3, 7007652), (4, 5255739), (6, 3503826), (9, 2335884), (12, 1751913), (18, 1167942), (27, 778628), (36, 583971), (37, 568188), (54, 389314), (74, 284094), (108, 194657), (111, 189396), (148, 142047), (222, 94698), (333, 63132), (444, 47349), (666, 31566), (999, 21044), (1332, 15783), (1998, 10522), (3996, 5261)]