18589581

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 40

約数和(自身を含む): 29969280

約数和(自身を除く): 11379699

約数列:

[1, 3, 9, 19, 27, 47, 57, 81, 141, 171, 257, 423, 513, 771, 893, 1269, 1539, 2313, 2679, 3807, 4883, 6939, 8037, 12079, 14649, 20817, 24111, 36237, 43947, 72333, 108711, 131841, 229501, 326133, 395523, 688503, 978399, 2065509, 6196527, 18589581]

約数ペア:

[(1, 18589581), (3, 6196527), (9, 2065509), (19, 978399), (27, 688503), (47, 395523), (57, 326133), (81, 229501), (141, 131841), (171, 108711), (257, 72333), (423, 43947), (513, 36237), (771, 24111), (893, 20817), (1269, 14649), (1539, 12079), (2313, 8037), (2679, 6939), (3807, 4883)]