20388537

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2003}}^1$

素因数の和:2054

約数の個数: 32

約数和(自身を含む): 33667200

約数和(自身を除く): 13278663

約数列:

[1, 3, 9, 13, 27, 29, 39, 87, 117, 261, 351, 377, 783, 1131, 2003, 3393, 6009, 10179, 18027, 26039, 54081, 58087, 78117, 174261, 234351, 522783, 703053, 755131, 1568349, 2265393, 6796179, 20388537]

約数ペア:

[(1, 20388537), (3, 6796179), (9, 2265393), (13, 1568349), (27, 755131), (29, 703053), (39, 522783), (87, 234351), (117, 174261), (261, 78117), (351, 58087), (377, 54081), (783, 26039), (1131, 18027), (2003, 10179), (3393, 6009)]