217815585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{2423}}^1$

素因数の和:2905

約数の個数: 32

約数和(自身を含む): 376282368

約数和(自身を除く): 158466783

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 461, 1383, 2305, 2423, 5993, 6915, 7269, 12115, 17979, 29965, 31499, 36345, 89895, 94497, 157495, 472485, 1117003, 3351009, 5585015, 14521039, 16755045, 43563117, 72605195, 217815585]

約数ペア:

[(1, 217815585), (3, 72605195), (5, 43563117), (13, 16755045), (15, 14521039), (39, 5585015), (65, 3351009), (195, 1117003), (461, 472485), (1383, 157495), (2305, 94497), (2423, 89895), (5993, 36345), (6915, 31499), (7269, 29965), (12115, 17979)]