20718384

素因数分解:

$2^4\times 3^1\times {\mathrm{653}}^1\times {\mathrm{661}}^1$

素因数の和:1325

約数の個数: 40

約数和(自身を含む): 53685552

約数和(自身を除く): 32967168

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 653, 661, 1306, 1322, 1959, 1983, 2612, 2644, 3918, 3966, 5224, 5288, 7836, 7932, 10448, 10576, 15672, 15864, 31344, 31728, 431633, 863266, 1294899, 1726532, 2589798, 3453064, 5179596, 6906128, 10359192, 20718384]

約数ペア:

[(1, 20718384), (2, 10359192), (3, 6906128), (4, 5179596), (6, 3453064), (8, 2589798), (12, 1726532), (16, 1294899), (24, 863266), (48, 431633), (653, 31728), (661, 31344), (1306, 15864), (1322, 15672), (1959, 10576), (1983, 10448), (2612, 7932), (2644, 7836), (3918, 5288), (3966, 5224)]