18372159

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:336

約数の個数: 36

約数和(自身を含む): 29461536

約数和(自身を除く): 11089377

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 169, 257, 423, 507, 611, 771, 1521, 1833, 2313, 3341, 5499, 7943, 10023, 12079, 23829, 30069, 36237, 43433, 71487, 108711, 130299, 157027, 390897, 471081, 1413243, 2041351, 6124053, 18372159]

約数ペア:

[(1, 18372159), (3, 6124053), (9, 2041351), (13, 1413243), (39, 471081), (47, 390897), (117, 157027), (141, 130299), (169, 108711), (257, 71487), (423, 43433), (507, 36237), (611, 30069), (771, 23829), (1521, 12079), (1833, 10023), (2313, 7943), (3341, 5499)]