20703445

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 30228480

約数和(自身を除く): 9525035

約数列:

[1, 5, 7, 19, 35, 95, 133, 163, 191, 665, 815, 955, 1141, 1337, 3097, 3629, 5705, 6685, 15485, 18145, 21679, 25403, 31133, 108395, 127015, 155665, 217931, 591527, 1089655, 2957635, 4140689, 20703445]

約数ペア:

[(1, 20703445), (5, 4140689), (7, 2957635), (19, 1089655), (35, 591527), (95, 217931), (133, 155665), (163, 127015), (191, 108395), (665, 31133), (815, 25403), (955, 21679), (1141, 18145), (1337, 15485), (3097, 6685), (3629, 5705)]