215988255

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{228559}}^1$

素因数の和:228580

約数の個数: 32

約数和(自身を含む): 438835200

約数和(自身を除く): 222846945

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 228559, 685677, 1142795, 1599913, 2057031, 3428385, 4799739, 6171093, 7999565, 10285155, 14399217, 23998695, 30855465, 43197651, 71996085, 215988255]

約数ペア:

[(1, 215988255), (3, 71996085), (5, 43197651), (7, 30855465), (9, 23998695), (15, 14399217), (21, 10285155), (27, 7999565), (35, 6171093), (45, 4799739), (63, 3428385), (105, 2057031), (135, 1599913), (189, 1142795), (315, 685677), (945, 228559)]