51721551

素因数分解:

$3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2089}}^1$

素因数の和:2236

約数の個数: 32

約数和(自身を含む): 88281600

約数和(自身を除く): 36560049

約数列:

[1, 3, 7, 9, 21, 27, 63, 131, 189, 393, 917, 1179, 2089, 2751, 3537, 6267, 8253, 14623, 18801, 24759, 43869, 56403, 131607, 273659, 394821, 820977, 1915613, 2462931, 5746839, 7388793, 17240517, 51721551]

約数ペア:

[(1, 51721551), (3, 17240517), (7, 7388793), (9, 5746839), (21, 2462931), (27, 1915613), (63, 820977), (131, 394821), (189, 273659), (393, 131607), (917, 56403), (1179, 43869), (2089, 24759), (2751, 18801), (3537, 14623), (6267, 8253)]