19818539

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 23298912

約数和(自身を除く): 3480373

約数列:

[1, 13, 19, 41, 103, 247, 361, 533, 779, 1339, 1957, 4223, 4693, 10127, 14801, 25441, 37183, 54899, 80237, 192413, 483379, 1043081, 1524503, 19818539]

約数ペア:

[(1, 19818539), (13, 1524503), (19, 1043081), (41, 483379), (103, 192413), (247, 80237), (361, 54899), (533, 37183), (779, 25441), (1339, 14801), (1957, 10127), (4223, 4693)]