211672695

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{63853}}^1$

素因数の和:63891

約数の個数: 32

約数和(自身を含む): 386188992

約数和(自身を除く): 174516297

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 63853, 191559, 319265, 830089, 957795, 1085501, 2490267, 3256503, 4150445, 5427505, 12451335, 14111513, 16282515, 42334539, 70557565, 211672695]

約数ペア:

[(1, 211672695), (3, 70557565), (5, 42334539), (13, 16282515), (15, 14111513), (17, 12451335), (39, 5427505), (51, 4150445), (65, 3256503), (85, 2490267), (195, 1085501), (221, 957795), (255, 830089), (663, 319265), (1105, 191559), (3315, 63853)]