398809887

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1\times {\mathrm{719}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 619960320

約数和(自身を除く): 221150433

約数列:

[1, 3, 7, 21, 61, 183, 427, 433, 719, 1281, 1299, 2157, 3031, 5033, 9093, 15099, 26413, 43859, 79239, 131577, 184891, 307013, 311327, 554673, 921039, 933981, 2179289, 6537867, 18990947, 56972841, 132936629, 398809887]

約数ペア:

[(1, 398809887), (3, 132936629), (7, 56972841), (21, 18990947), (61, 6537867), (183, 2179289), (427, 933981), (433, 921039), (719, 554673), (1281, 311327), (1299, 307013), (2157, 184891), (3031, 131577), (5033, 79239), (9093, 43859), (15099, 26413)]