211040271

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{1559}}^1$

素因数の和:1680

約数の個数: 36

約数和(自身を含む): 334011600

約数和(自身を除く): 122971329

約数列:

[1, 3, 9, 13, 39, 89, 117, 169, 267, 507, 801, 1157, 1521, 1559, 3471, 4677, 10413, 14031, 15041, 20267, 45123, 60801, 135369, 138751, 182403, 263471, 416253, 790413, 1248759, 1803763, 2371239, 5411289, 16233867, 23448919, 70346757, 211040271]

約数ペア:

[(1, 211040271), (3, 70346757), (9, 23448919), (13, 16233867), (39, 5411289), (89, 2371239), (117, 1803763), (169, 1248759), (267, 790413), (507, 416253), (801, 263471), (1157, 182403), (1521, 138751), (1559, 135369), (3471, 60801), (4677, 45123), (10413, 20267), (14031, 15041)]