20841535

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 29772288

約数和(自身を除く): 8930753

約数列:

[1, 5, 11, 13, 55, 65, 103, 143, 283, 515, 715, 1133, 1339, 1415, 3113, 3679, 5665, 6695, 14729, 15565, 18395, 29149, 40469, 73645, 145745, 202345, 320639, 378937, 1603195, 1894685, 4168307, 20841535]

約数ペア:

[(1, 20841535), (5, 4168307), (11, 1894685), (13, 1603195), (55, 378937), (65, 320639), (103, 202345), (143, 145745), (283, 73645), (515, 40469), (715, 29149), (1133, 18395), (1339, 15565), (1415, 14729), (3113, 6695), (3679, 5665)]