21889424

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 43872192

約数和(自身を除く): 21982768

約数列:

[1, 2, 4, 8, 16, 53, 83, 106, 166, 212, 311, 332, 424, 622, 664, 848, 1244, 1328, 2488, 4399, 4976, 8798, 16483, 17596, 25813, 32966, 35192, 51626, 65932, 70384, 103252, 131864, 206504, 263728, 413008, 1368089, 2736178, 5472356, 10944712, 21889424]

約数ペア:

[(1, 21889424), (2, 10944712), (4, 5472356), (8, 2736178), (16, 1368089), (53, 413008), (83, 263728), (106, 206504), (166, 131864), (212, 103252), (311, 70384), (332, 65932), (424, 51626), (622, 35192), (664, 32966), (848, 25813), (1244, 17596), (1328, 16483), (2488, 8798), (4399, 4976)]