20503245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6299}}^1$

素因数の和:6345

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 18203955

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6299, 18897, 31495, 44093, 94485, 132279, 195269, 220465, 585807, 661395, 976345, 1366883, 2929035, 4100649, 6834415, 20503245]

約数ペア:

[(1, 20503245), (3, 6834415), (5, 4100649), (7, 2929035), (15, 1366883), (21, 976345), (31, 661395), (35, 585807), (93, 220465), (105, 195269), (155, 132279), (217, 94485), (465, 44093), (651, 31495), (1085, 18897), (3255, 6299)]