1656670401

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{4093}}^1$

素因数の和:4387

約数の個数: 40

約数和(自身を含む): 2615574720

約数和(自身を除く): 958904319

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 263, 513, 789, 1539, 2367, 4093, 4997, 7101, 12279, 14991, 21303, 36837, 44973, 77767, 110511, 134919, 233301, 331533, 404757, 699903, 1076459, 2099709, 3229377, 6299127, 9688131, 20452721, 29064393, 61358163, 87193179, 184074489, 552223467, 1656670401]

約数ペア:

[(1, 1656670401), (3, 552223467), (9, 184074489), (19, 87193179), (27, 61358163), (57, 29064393), (81, 20452721), (171, 9688131), (263, 6299127), (513, 3229377), (789, 2099709), (1539, 1076459), (2367, 699903), (4093, 404757), (4997, 331533), (7101, 233301), (12279, 134919), (14991, 110511), (21303, 77767), (36837, 44973)]