644156973

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{271}}^1\times {\mathrm{2423}}^1$

素因数の和:2809

約数の個数: 24

約数和(自身を含む): 942839040

約数和(自身を除く): 298682067

約数列:

[1, 3, 9, 109, 271, 327, 813, 981, 2423, 2439, 7269, 21807, 29539, 88617, 264107, 265851, 656633, 792321, 1969899, 2376963, 5909697, 71572997, 214718991, 644156973]

約数ペア:

[(1, 644156973), (3, 214718991), (9, 71572997), (109, 5909697), (271, 2376963), (327, 1969899), (813, 792321), (981, 656633), (2423, 265851), (2439, 264107), (7269, 88617), (21807, 29539)]