645805293

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1337071}}^1$

素因数の和:1337104

約数の個数: 16

約数和(自身を含む): 1026871296

約数和(自身を除く): 381066003

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 1337071, 4011213, 9359497, 28078491, 30752633, 92257899, 215268431, 645805293]

約数ペア:

[(1, 645805293), (3, 215268431), (7, 92257899), (21, 30752633), (23, 28078491), (69, 9359497), (161, 4011213), (483, 1337071)]