201720908

素因数分解:

$2^2\times {\mathrm{197}}^1\times {\mathrm{281}}^1\times {\mathrm{911}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 356457024

約数和(自身を除く): 154736116

約数列:

[1, 2, 4, 197, 281, 394, 562, 788, 911, 1124, 1822, 3644, 55357, 110714, 179467, 221428, 255991, 358934, 511982, 717868, 1023964, 50430227, 100860454, 201720908]

約数ペア:

[(1, 201720908), (2, 100860454), (4, 50430227), (197, 1023964), (281, 717868), (394, 511982), (562, 358934), (788, 255991), (911, 221428), (1124, 179467), (1822, 110714), (3644, 55357)]