21143178

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5413}}^1$

素因数の和:5459

約数の個数: 48

約数和(自身を含む): 54053376

約数和(自身を除く): 32910198

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 1302, 1953, 3906, 5413, 10826, 16239, 32478, 37891, 48717, 75782, 97434, 113673, 167803, 227346, 335606, 341019, 503409, 682038, 1006818, 1174621, 1510227, 2349242, 3020454, 3523863, 7047726, 10571589, 21143178]

約数ペア:

[(1, 21143178), (2, 10571589), (3, 7047726), (6, 3523863), (7, 3020454), (9, 2349242), (14, 1510227), (18, 1174621), (21, 1006818), (31, 682038), (42, 503409), (62, 341019), (63, 335606), (93, 227346), (126, 167803), (186, 113673), (217, 97434), (279, 75782), (434, 48717), (558, 37891), (651, 32478), (1302, 16239), (1953, 10826), (3906, 5413)]