18493839

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{193}}^1$

素因数の和:238

約数の個数: 60

約数和(自身を含む): 34365936

約数和(自身を除く): 15872097

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 169, 189, 193, 273, 351, 507, 567, 579, 819, 1053, 1183, 1351, 1521, 1737, 2457, 2509, 3549, 4053, 4563, 5211, 7371, 7527, 10647, 12159, 13689, 15633, 17563, 22581, 31941, 32617, 36477, 52689, 67743, 95823, 97851, 109431, 158067, 203229, 228319, 293553, 474201, 684957, 880659, 1422603, 2054871, 2641977, 6164613, 18493839]

約数ペア:

[(1, 18493839), (3, 6164613), (7, 2641977), (9, 2054871), (13, 1422603), (21, 880659), (27, 684957), (39, 474201), (63, 293553), (81, 228319), (91, 203229), (117, 158067), (169, 109431), (189, 97851), (193, 95823), (273, 67743), (351, 52689), (507, 36477), (567, 32617), (579, 31941), (819, 22581), (1053, 17563), (1183, 15633), (1351, 13689), (1521, 12159), (1737, 10647), (2457, 7527), (2509, 7371), (3549, 5211), (4053, 4563)]