20677695

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 14677185

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 619, 655, 1857, 1965, 2227, 3095, 6681, 9285, 10523, 11135, 31569, 33405, 52615, 81089, 157845, 243267, 405445, 1216335, 1378513, 4135539, 6892565, 20677695]

約数ペア:

[(1, 20677695), (3, 6892565), (5, 4135539), (15, 1378513), (17, 1216335), (51, 405445), (85, 243267), (131, 157845), (255, 81089), (393, 52615), (619, 33405), (655, 31569), (1857, 11135), (1965, 10523), (2227, 9285), (3095, 6681)]