28666287

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:480

約数の個数: 36

約数和(自身を含む): 45905184

約数和(自身を除く): 17238897

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 169, 401, 423, 507, 611, 1203, 1521, 1833, 3609, 5213, 5499, 7943, 15639, 18847, 23829, 46917, 56541, 67769, 71487, 169623, 203307, 245011, 609921, 735033, 2205099, 3185143, 9555429, 28666287]

約数ペア:

[(1, 28666287), (3, 9555429), (9, 3185143), (13, 2205099), (39, 735033), (47, 609921), (117, 245011), (141, 203307), (169, 169623), (401, 71487), (423, 67769), (507, 56541), (611, 46917), (1203, 23829), (1521, 18847), (1833, 15639), (3609, 7943), (5213, 5499)]