21528552

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:982

約数の個数: 64

約数和(自身を含む): 57530880

約数和(自身を除く): 36002328

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 43, 46, 69, 86, 92, 129, 138, 172, 184, 258, 276, 344, 516, 552, 907, 989, 1032, 1814, 1978, 2721, 2967, 3628, 3956, 5442, 5934, 7256, 7912, 10884, 11868, 20861, 21768, 23736, 39001, 41722, 62583, 78002, 83444, 117003, 125166, 156004, 166888, 234006, 250332, 312008, 468012, 500664, 897023, 936024, 1794046, 2691069, 3588092, 5382138, 7176184, 10764276, 21528552]

約数ペア:

[(1, 21528552), (2, 10764276), (3, 7176184), (4, 5382138), (6, 3588092), (8, 2691069), (12, 1794046), (23, 936024), (24, 897023), (43, 500664), (46, 468012), (69, 312008), (86, 250332), (92, 234006), (129, 166888), (138, 156004), (172, 125166), (184, 117003), (258, 83444), (276, 78002), (344, 62583), (516, 41722), (552, 39001), (907, 23736), (989, 21768), (1032, 20861), (1814, 11868), (1978, 10884), (2721, 7912), (2967, 7256), (3628, 5934), (3956, 5442)]